Frequently Asked Questions
Feel free to contact us if you have any questions about manufacturing.
The lead time depends on the following factors:
– Mold preparation time (usually 2-12 weeks).
– Part complexity and batch size.
– Surface treatment or post-processing requirements.
The single production cycle in the mass production stage is usually 1-3 weeks.
It depends on the material:
– Plastic materials: suitable for low and medium strength uses, with a temperature range of -20℃ to 80℃.
– Metal materials: high strength, can withstand loads of hundreds of MPa, and high temperature resistance of more than 600℃.
We will recommend suitable materials and printing technologies based on your needs.
For 3D drawings, we prefer STEP, IGS, STP, SLDPRT or X_T formats. For 2D drawings (pdf format), we prefer dimension tolerances if possible. Of course, you can also send us all files in a zip file.
Vacuum casting is a manufacturing process that uses a silicone mold and a vacuum environment to pour liquid material (usually plastic or rubber) into a mold, and solidifies the material into shape through vacuum pressure. This process is suitable for producing a small number of high-precision prototypes or functional parts.
3D printing is suitable for small batch production, especially in the following cases:
– Less than 100 pieces are required per batch.
– Parts need to be customized.
– Products are frequently updated.
For mass production, it may be necessary to combine other manufacturing methods (such as injection molding) to optimize costs.
When choosing a suitable surface treatment method, the following factors should be considered:
– Part material: Different materials (such as aluminum, stainless steel, plastic, etc.) are suitable for different surface treatment methods.
– Functional requirements of parts: If you need to enhance corrosion resistance, choose electroplating or anodizing; if you need to improve the appearance, you can choose spraying or polishing.
– Environmental requirements: If the parts will be used in high temperature, humid or corrosive environments, it is necessary to select a suitable surface treatment method with strong durability.
– Appearance requirements: If the parts are required to have a smooth and bright appearance, polishing, electroplating or spraying can be selected.
– Cost and cycle: Different surface treatment methods have different costs and processing times, and you need to make a choice based on your budget and production cycle.
Contact our engineers and they will give you professional advice and design guidance.
The life of the mold depends on the following factors:
– Mold material: such as P20 steel (more than 500,000 times), H13 steel (more than 1 million times).
– Usage conditions: temperature, pressure and maintenance frequency.
– Part material: Materials that are more abrasive to the mold will shorten the mold life.
Regular maintenance and care can significantly extend the mold life.
We ensure the quality of parts through the following measures:
– Strict ISO9001 quality management system certification.
– Use high-precision testing equipment (such as CMM three-coordinate measuring machine) for quality inspection.
– Provide quality reports and test data for verification.
Due to customized production and small quantity requirements, the unit cost of custom parts may be higher than that of standard parts. We will try to reduce costs while ensuring quality by optimizing processing technology and material utilization.
The surface quality of vacuum casting parts is generally high, and a very smooth surface effect can be achieved, which is especially suitable for prototype development and low-volume production.
– For parts that require a particularly smooth surface, post-processing processes such as polishing, spraying, etc. can be selected.
– For parts that require surface texture or special effects, this can also be achieved through mold design.
Vacuum casting is usually suitable for the following materials:
– Polyurethane (PU): Commonly used to produce prototypes and functional parts.
– Silicone: suitable for making flexible parts.
– Engineering plastics such as ABS, PA, PC: can be used for some parts with high strength requirements.
– Rubber: used to produce flexible and elastic parts.
When choosing materials, it is necessary to decide based on the use environment and performance requirements of the parts.
Yes, we can keep production records for customers, including drawings, materials and process requirements, to ensure that subsequent batches are consistent with the initial products. We also provide inventory management services to facilitate your on-demand ordering.
Yes, injection molded parts support multiple colors:
– Direct coloring: Add masterbatch to the raw material.
– Post-spraying: Achieve more complex or gradient color effects.
Please provide the color code (such as Pantone or RAL) when placing an order.
CNC machining (CNC machining) is a technology that uses computer programs to control machine tools to perform cutting, drilling, milling and other processing on materials. Compared with traditional manual machining, CNC machining has the following advantages:
– High precision: programmed control reduces human errors and ensures part accuracy.
– High efficiency: automated production is faster and is particularly suitable for the processing of complex-shaped parts.
– Strong repeatability: parts in the same batch have high dimensional consistency.
Non-standard parts are parts that do not meet standard specifications and need to be designed and customized according to specific needs. We specialize in non-standard parts manufacturing and have rich experience and equipment to produce high-precision non-standard parts according to customer drawings or samples.
Yes, vacuum casting can produce transparent parts, especially when using materials such as transparent polyurethane (PU). Transparent parts are usually used to display products or applications that require visual effects, such as housings, display panels, etc.
3D printing can use a variety of materials, mainly including:
– Plastics: PLA, ABS, nylon, polycarbonate, etc., suitable for ordinary prototypes and functional parts.
– Metals: stainless steel, aluminum, titanium alloys, etc., for high-strength or high-temperature resistant parts.
– Resins: suitable for high-precision models and smooth surface requirements.
– Composite materials: such as carbon fiber reinforced nylon, suitable for high-strength and lightweight design.
We ensure that the parts meet your needs through the following processes:
– Detailed analysis based on your drawings or samples to confirm all requirements.
– Provide samples or prototypes for testing and confirmation.
– Full quality control and inspection to ensure that the final product meets the specifications.
The production cycle is usually:
– Small parts: 1-3 days (1-10PCS), 3-15 days (10-100PCS);
– Medium and large parts: 3-7 days (1-10PCS), 7-20 days (10-100PCS)
Parts with complex geometry or requiring post-processing may take longer.
CNC machining is suitable for a variety of materials, including:
– Metal materials: aluminum, steel, stainless steel, titanium alloy, copper, etc.
– Plastic materials: ABS, polycarbonate, nylon, POM, etc.
– Composite materials: carbon fiber reinforced plastic, glass fiber, etc.
The choice of different materials depends on the application requirements of the parts, such as strength, heat resistance, conductivity, etc.
Please provide the following information:
– 3D model file: STL or OBJ format, to ensure that the design details are complete.
– Material requirements: such as strength, color, surface finish, etc.
– Application information: describe the use environment of the part (such as temperature, load).
If you are not sure about the specific needs, we can provide suggestions based on your use.
– Production method: Vacuum casting uses silicone molds, while injection molding uses metal molds.
– Mass production: Vacuum casting is suitable for small batch production (usually dozens to hundreds of pieces), while injection molding is suitable for large batch production.
– Mold cost: Vacuum casting has a lower mold cost because silicone molds are used, while injection molds require more expensive metal materials and processing.
– Surface quality: Vacuum casting can produce high-precision and smooth surfaces, which is suitable for prototype development and small quantities of customized parts.
The accuracy of 3D printing depends on the printing technology and materials:
– FDM printing: usually with an accuracy of ±0.1mm, suitable for functional parts.
– SLA/DLP printing: with an accuracy of up to ±0.05mm, suitable for high-precision models.
– SLS printing: with an accuracy between ±0.1-0.2mm, suitable for parts with higher strength.
– Metal 3D printing: with an accuracy of about ±0.05-0.1mm, used for industrial and aviation parts.
We attach great importance to intellectual property protection:
– Sign a non-disclosure agreement (NDA) to ensure the security of customer design information.
– Strictly limit internal access rights to design files and only use them by relevant personnel.
Our industrial 3D printing, CNC machining, sheet metal fabrication, and injection molding services provide parts made directly from the customer’s 3D CAD model, reducing the likelihood of errors. Proprietary software automates toolpath generation to decrease manufacturing times and reduce costs.
3D printing is a manufacturing technology that creates objects by adding materials layer by layer, also known as additive manufacturing. It is suitable for the following applications:
– Rapid prototyping: used to verify design and function.
– Small batch custom production: such as customized parts or models.
– Complex geometry: part design that is difficult to achieve with traditional processing.
– Tool and mold manufacturing: especially for projects that require short delivery time.
The production cycle depends on the following factors:
– Complexity of the part: complex geometric shapes require more processing time.
– Quantity: small batch (1-50PCS) orders usually take 3-10 days to complete; large batch (>50PCS) orders will take slightly longer, generally 10-30 days to complete.
– Surface treatment: If additional treatment is required, the time will increase accordingly.
The following factors need to be considered when selecting materials:
– Application scenario: the load, temperature and environmental conditions that the part needs to withstand.
– Mechanical properties: strength, hardness, wear resistance, etc.
– Machinability: The cutting performance of different materials affects processing efficiency and cost.
If you are not sure about the material selection, we can provide professional advice based on your needs.
Injection molding is suitable for manufacturing the following types of products:
– Consumer electronics: mobile phone housing, earphone parts.
– Automotive parts: dashboards, bumpers.
– Medical devices: disposable syringe housings, surgical instruments.
– Household appliances: plastic panels, housings.
– Industrial parts: gears, fixtures.
Yes, the surface treatment will have some effect on the size of the parts, depending on the type of surface treatment:
– Plating and spraying: These processes will form a thin film on the surface of the part, usually at the micron level, so it will have a slight effect on the size of the part.
– Anodizing: The anodized layer will increase the thickness of the part surface, which may cause a slight change in the size of the part.
– Polishing and sandblasting: These two treatments usually remove some surface material, so they may cause a slight reduction in the size of the part.
These effects need to be considered during design to ensure that the parts still meet the tolerance requirements after surface treatment.
Yes, vacuum casting can support multiple colors:
– Material inherent color: Some materials can provide different colors directly during the production process.
– Post-spraying or coloring: Color customization can be achieved by spraying or adding masterbatch.
Customers can provide color codes (such as Pantone), and we can also provide color matching services according to needs.
We ensure the quality of the surface treatment by the following methods:
– Strict process control: The process parameters such as temperature, time, liquid concentration, etc. need to be strictly controlled during the production process to ensure the quality of the surface treatment.
– Quality inspection and testing: After completing the surface treatment, carry out necessary inspections and tests, such as corrosion resistance test, hardness test, appearance inspection, etc.
– Choose the right service provider: Choose a surface treatment supplier with experience and quality control capabilities to ensure that the process meets industry standards and customer requirements.
3D printing is more environmentally friendly than traditional processing:
– High material utilization rate and reduced waste.
– Some materials are recyclable or biodegradable (such as PLA).
– No mold manufacturing is required, reducing resource consumption.
Yes, vacuum molded parts can be post-processed, such as:
– CNC processing: for further processing details and precision.
– Surface treatment: such as spraying, plating, laser engraving, etc.
– Assembly and testing: multiple parts can be assembled or functionally tested.
We take the following measures to ensure compliance:
– Design check before printing to ensure the model is error-free.
– Dimensional inspection after printing and provide inspection report (if necessary).
– Arrange follow-up processing or shipment after confirmation with the customer.
The choice of mold cavity number depends on the production requirements:
– Small batch production: single-cavity mold is recommended.
– Large batch production: multi-cavity mold (such as 2-cavity, 4-cavity or more) can be used to improve production efficiency.
We offer FAIs on machined and molded parts.
The cost of surface treatment usually depends on the following factors:
– Number of parts: The unit price of large-scale production is usually lower.
– Type of surface treatment: Such as electroplating, anodizing, spraying, etc., each method has different costs.
– Part complexity: Parts with complex shapes may require more processing time and materials, increasing costs.
– Post-processing: If additional polishing, spraying or other post-processing is required, these will increase the total cost.
In order to start the processing smoothly, please provide the following information:
– CAD file: 3D model (such as STEP, IGES format) and 2D drawing (marking key dimensions and tolerances).
– Material information: required material type and performance requirements.
– Quantity requirements: small batch or large batch production quantity.
– Surface treatment requirements: such as anodizing, electroplating, spraying, etc.
– Free design: complex geometries can be achieved without additional processes.
– Fast delivery: eliminating mold manufacturing time, directly from design to finished product.
– Cost saving: especially suitable for small batches or single-piece production.
– Material saving: only use the required materials to reduce waste.
Yes, but it depends on the modification requirements:
– Small adjustments (such as size optimization) can be achieved through mold processing.
– Major changes may require redesign and manufacture of the mold.
During the design stage, we recommend multiple communications to reduce the cost of later modifications.
The dimensional tolerance of vacuum casting parts is usually between ±0.1mm and ±0.3mm, depending on the size, complexity and material type of the part. For parts with high precision requirements, the precision can be improved through fine processing.
The cost of vacuum molded parts is usually determined by the following factors:
– Mold making cost: mold complexity and size affect the cost.
– Material cost: determined by the type and quantity of selected materials.
– Production quantity: small batch production unit price is usually higher, but the overall cost is lower than injection molding.
– Surface treatment and post-processing: If spraying or other processing is required, these will increase costs.
In order to provide an accurate quote, please try to provide the following information:
– 3D CAD files (such as STEP or IGES format) and 2D drawings of the parts (indicating key dimensions, tolerances and material requirements).
– Material type or special performance requirements (such as corrosion resistance, high strength, etc.).
– Surface treatment requirements (such as anodizing, electroplating, polishing, etc.).
– Estimated quantity and delivery time.
Yes, 3D printing supports color customization:
– Some materials can directly print colored parts.
– Spraying and dyeing can be performed later to meet customized needs.
The delivery cycle depends on the following factors:
– Complexity of the part
– Availability of the required materials
– Processing quantity and surface treatment requirements
Usually, it takes 3-12 days to produce samples or small batches (1-50PCS), and large batches (>50PCS) need to be negotiated according to specific needs.
Surface treated parts require proper care to extend their service life and maintain their performance:
– Regular cleaning: Avoid accumulation of dirt, grease, etc., and clean parts regularly with appropriate cleaning agents.
– Avoid exposure to harsh environments: For example, avoid exposing surface coated parts to high temperature, high humidity or chemical corrosion environments.
– Prevent scratches and damage: Especially for bright electroplated or polished surfaces, avoid mechanical damage.
Vacuum molded parts are suitable for small batches, usually between tens and hundreds of pieces. For larger batches, it is recommended to consider other processes such as injection molding.
– For batches of more than 500 pieces, injection molds may be more economical and efficient.
– Vacuum molded parts are more suitable for fast delivery of small batches of customized parts.
Yes, we provide a full range of services, including:
– Various surface treatments (such as anodizing, electroplating, spraying, etc.).
– Parts assembly service to ensure direct delivery of usable components.
We verify the mold in the following ways:
– Trial mold: Trial mold production is carried out after the mold is completed.
– First Article Inspection Report (FAI): Provide detailed dimensional and performance test results.
– Sample confirmation: Mass production will only start after the customer confirms the sample.
If you find any problems, please contact us immediately. We promise:
– Repair or re-produce defective parts free of charge.
– Provide fast response to minimize the impact on customer projects.
The manufacturing cycle of a mold usually depends on the following factors:
– The complexity of the mold design.
– Mold material and processing technology.
– Mold size and number of cavities.
Generally, it takes 2-4 weeks for a simple mold and 6-12 weeks for a complex mold.
The strength and durability of vacuum molded parts depends on the selected material.
– Polyurethane (PU): can simulate the strength of ABS or other engineering plastics, suitable for general prototype testing.
– Engineering plastics (such as PA, PC): have high mechanical strength and temperature resistance, suitable for certain practical applications.
– Rubber: suitable for flexible parts, with good elasticity and wear resistance.
When selecting materials, we will recommend the best material based on customer needs and the use environment of the parts.
– Small batch: suitable for small-scale trial production or prototype development of 100-500 pieces.
– Large batch: up to millions of pieces, suitable for large-scale mass production.
The design of the mold is usually optimized according to the customer’s production requirements.
The following are several common methods for part surface treatment:
– Spraying: Spray the paint on the surface of the part through a spray gun to form a protective coating, which is usually used for corrosion protection and beauty.
– Electroplating: Depositing metal on the surface of parts through electrolytic reaction, common methods include chrome plating, zinc plating, gold plating, etc., which are used to improve corrosion resistance and aesthetics.
– Anodizing: Exposing aluminum or aluminum alloy parts to electrolyte, forming an oxide layer through electrochemical reaction, increasing hardness and corrosion resistance.
– Polishing: Polishing the surface of parts by mechanical or chemical means to remove the rough layer and achieve a mirror effect.
– Sandblasting: Hitting the surface of parts with high-speed particles to clean the surface or increase the surface roughness, usually used for aluminum alloys or steel parts.
– Heat treatment: Changing the mechanical properties of parts such as hardness and strength through the process of heating and cooling, commonly used for steel or alloy materials.
To get a quote for all our services, upload your 3D CAD model, material, order quantity, surface treatment (if required) on our website and submit. You will get a detailed quote including design feedback within 24 hours.
If there are issues in the submitted design, our engineers will email you with details about the potential manufacturing issues and suggest possible solutions.
We can provide materials that meet environmental standards:
– Degradable plastics: such as PLA, used for green environmental protection projects.
– RoHS/REACH compliant: materials suitable for electronic and medical products.
Please inform environmental protection or certification requirements when placing an order.
If you want to work with Rapid Protos, you generally do not need to sign a non-disclosure agreement. When you upload your CAD model to our website, we use state-of-the-art encryption technology, and anything you upload is protected by a non-disclosure agreement.
If your product and design need to be strictly confidential, we can also sign a non-disclosure agreement to ensure that your design files will only be used for internal manufacturing at Rapid Protos and will not be used for other purposes.
For more information, please refer to our safety policy.
The tolerance range of injection molded parts is usually between ±0.05mm and ±0.2mm, depending on:
– Part design and size.
– Material shrinkage.
– Mold processing accuracy.
We can optimize tolerance control according to customer needs.
The mold cost is mainly determined by the following factors:
– Mold complexity: number of cavities and part geometry.
– Mold size: large molds are more expensive.
– Mold material: molds with high hardness or special materials are more expensive.
– Production cycle: rush orders may add additional costs.
We provide transparent and detailed quotation proposals based on customer needs.
Yes. We support insert molding process to embed metal parts into plastic parts, which is suitable for parts that need to increase strength or function, such as:
– Electronic connectors.
– Metal bearing seats in mechanical components.
We have multiple industrial 3D printers: the maximum can reach 600mm x 600mm x 600mm.
For oversized parts, they can be printed in blocks and then assembled.
If you don’t have design files, we can provide you with design support. Just provide a sample or detailed description of the part, and our engineers can help you with design and modeling.
Our CNC machining equipment can achieve high precision requirements:
– General tolerance range: ±0.01mm
– Special requirements: up to ±0.005mm (may vary depending on material and design)
The accuracy can be adjusted according to the drawings provided by the customer.
We can process various types of parts, including but not limited to:
– Precision machinery parts
– Industrial equipment accessories
– Aerospace components
– Medical device parts
– Electronic product housings and radiators
Whether it is a simple part or a part with complex geometry, we can meet your needs.
Some surface treatments will affect the subsequent processing, especially when the subsequent processing requires cutting or precision processing of the parts:
– Electroplating layer: If the electroplating layer is too thick, it may need to be removed in the subsequent processing.
– Spraying layer: The spraying layer may affect the subsequent finishing of the parts, especially where high-precision matching is required.
– Anodized layer: Due to the high hardness of the oxide layer, suitable tools and processing methods need to be selected for subsequent processing.
Therefore, when designing parts, you should consider in advance whether subsequent processing is required, and coordinate the processing process with the surface treatment provider.
We ensure quality by:
– Using ISO9001 and other industry certified quality control processes.
– Advanced testing equipment (such as CMM) for dimensional inspection.
– Providing quality reports before shipment, including test data and material certificates.
If the part does not meet the requirements, we will:
– Reprint the problematic part for free.
– Provide professional analysis and optimize the design or printing parameters to solve the problem.
The performance of the parts after surface treatment can have the following changes:
– Improved corrosion resistance: After electroplating, anodizing and other processes, a protective film is formed on the surface of the parts, which can effectively prevent oxidation and corrosion.
– Hardness enhancement: Certain surface treatments (such as heat treatment and hardening coating) can significantly improve the surface hardness of the parts and increase wear resistance.
– Appearance improvement: Through polishing or spraying, the surface of the parts becomes smoother and brighter, especially suitable for consumer products that require high appearance standards.
– Improved electrical performance: Surface treatments such as gold or silver plating on electronic parts can improve the conductivity and reliability of the parts.
Part surface treatment is to improve the performance of the part surface, such as corrosion resistance, hardness, appearance, etc., through physical or chemical methods. Common surface treatment methods include spraying, oxidation, electroplating, polishing, etc. These treatments not only improve the function of the parts, but also increase their beauty and durability.
The cost mainly depends on the following factors:
– Material cost: Different materials have different prices.
– Processing time: Complexity and number of parts affect processing time.
– Surface treatment: Additional treatment will increase costs.
– Express freight: The freight is determined according to the country, product weight and transportation channel.
We will provide transparent and detailed quotes based on your specific needs.
We serve a variety of industries including medical devices, automotive, lighting, aerospace, marine, communications technology, automation equipment, robotics, energy, consumer products and electronics.
Injection molding is a manufacturing process that injects heated and molten plastic into a mold and cools it to form.
Advantages:
– Efficient: suitable for mass production.
– Accurate: can achieve high-precision part manufacturing.
– Diversity: supports a variety of complex shapes and designs.
– Economical: low unit cost, especially in mass production.
Methods to ensure the quality of vacuum molded parts include:
– Mold design and production: ensure mold accuracy and quality to avoid molding defects.
– Strict process control: quality control of each batch of production, including material selection and control of the processing process.
– Finished product inspection: ensure that the parts meet customer requirements through means such as dimensional inspection, surface inspection and functional testing.
Vacuum casting is suitable for the following types of parts:
– Prototype parts: Quickly make functional prototypes for testing.
– Small batch production parts: Suitable for the production of smaller quantities of customized parts.
– Complex shape parts: Able to manufacture parts with complex geometries, especially shapes that cannot be easily produced by traditional injection molding.
– Industrial and consumer products: such as housings, seals, mechanical accessories, etc.
Yes, we support orders from international customers, provide global shipping services, and produce in accordance with the industry standards or certification requirements of the customer’s country.
Yes, we are good at processing parts with complex shapes. With advanced equipment (such as five-axis CNC machining centers and precision machining equipment), we can produce non-standard parts with complex geometries to meet demanding precision requirements.
We ensure accuracy and consistency by:
– Using high-precision CNC machines to make molds.
– Performing mold trials to verify dimensions and performance.
– Strictly controlling process parameters such as temperature, pressure and time during mass production.
– Using quality inspection equipment to conduct random or full inspections of each batch of products.
Part surface treatment can provide a variety of benefits, including:
– Improve corrosion resistance: prevent oxidation or chemical corrosion and extend the service life of parts.
– Enhance hardness and wear resistance: reduce wear, improve the durability of parts, and adapt to harsher working environments.
– Improve appearance: make parts more beautiful, especially for consumer products that require high appearance quality.
– Improve electrical properties: For example, improve conductivity or insulation through electroplating or coating.
The surface quality depends on the printing technology and post-processing process:
– FDM printing: The surface has obvious layer lines, but it can be improved by grinding and spraying.
– SLA/DLP printing: The surface is smooth, which is very suitable for display models.
– SLS printing: The surface is slightly rough, but the structural strength is high.
Polishing, spraying, dyeing and other treatments can be performed later to improve the appearance.
Injection molding materials are mainly divided into two categories:
– Thermoplastics: such as ABS, PP, PC, PE, PA, etc., suitable for general use.
– Thermosetting plastics: such as epoxy resin and phenolic resin, suitable for high temperature and high strength requirements.
The selection of materials should be based on the function of the part, environmental requirements (such as heat resistance, toughness) and budget.
We currently have more than 80 processing equipment, including CNC milling machines, CNC lathes, Swiss lathes, 5-axis CNC machines, laser cutting machines, punching machines, bending machines and other manufacturing equipment. At the same time, we cooperate with more than 50 manufacturers and can provide a variety of manufacturing process services to meet all product manufacturing needs.
The production cycle of vacuum casting is relatively short and usually includes the following steps:
– Mold making: usually takes 1-3 days, which may vary depending on the complexity of the part.
– Part production: usually 2-5 days, depending on the batch and the complexity of the part.
The overall production cycle is usually 5-10 days, which is suitable for rapid prototyping and small batch production.
The following surface treatments can be performed on injection molded parts:
– Polishing: Improve gloss and transparency.
– Texturing: Engraving the mold surface to increase friction or decorative effects.
– Spraying: Provide a specific color or protective layer for the part.
– Electroplating: Increase the wear resistance or conductivity of the part.
– Silk screen: Used for printing product logos or patterns.
The shrinkage rate is determined by material properties and design, and the common range is 0.4% to 2.0%.
We adjust parameters during the mold design phase to compensate for shrinkage based on material and part size.
