Factory Custom Molded Rubber Parts
Product Overview:
FlexiTurn provides custom rubber molding services, manufacturing components from your 2D and 3D CAD files via in-house multi-axis CNC mold tooling. We produce durable rubber parts including beveled sealing rings, countersunk isolators, flanged bushings, and custom gaskets. Supported by 24-hour DFM reviews, rapid 3–5 day prototyping via fast-turn aluminum tooling, and flexible production with no MOQ, FlexiTurn combines precision CNC toolmaking with custom rubber molding.
Workmanship: Molding
Material: Rubber
Inquiry Email: sales@flexiturn.com
Factory Custom Molded Rubber Parts Details
FlexiTurn provides custom rubber molding services, combining in-house CNC mold tooling with precision elastomer processing. The black beveled sealing rings and countersunk washers shown above—with clean chamfered profiles, concentric bores, and smooth mating surfaces—exemplify our capability to convert your 2D and 3D CAD models into durable, dimensionally consistent rubber parts engineered for sealing, shock absorption, and mechanical isolation.
Material Selection GuideSealing performance depends on matching the elastomer to the operating environment. Below is a quick reference for common sealing and isolation applications:
| Elastomer | Hardness Range | Temp Range | Oil/Fuel Resistance |
| NBR (Nitrile) | 40–90 Shore A | -30°C to +100°C | Excellent |
| EPDM | 30–80 Shore A | -40°C to +150°C | Poor (water/ozone excellent) |
| FKM (Viton) | 50–90 Shore A | -20°C to +200°C | Excellent |
| Silicone (VMQ) | 20–80 Shore A | -60°C to +230°C | Poor |
| Neoprene (CR) | 40–90 Shore A | -30°C to +120°C | Good |
| Natural Rubber (NR) | 30–80 Shore A | -50°C to +80°C | Poor |
In-House CNC Tooling & Molding Process
CNC Mold Cavity Machining
Accurate rubber dimensions depend on mold tooling precision. FlexiTurn machines steel and aluminum mold cavities, core pins, and inserts in-house using multi-axis CNC milling centers, maintaining controlled wall uniformity, draft angles, and smooth surface finishes on beveled and chamfered profiles.
Concentric Core & Chamfer ControlPrecision CNC turning of mold core pins ensures controlled concentricity between internal bores and outer tapered edges, minimizing wall-thickness variations under clamping pressure.
Molding Processes- Compression Molding: Ideal for low-to-medium volumes, thick cross-sections, and large gaskets
- Rubber Injection Molding: Suitable for high-volume production, tight flash control, and complex geometries
- Transfer Molding: Used for parts with metal inserts or intricate internal features
Controlled Deflashing
Optimized mold parting design and controlled post-processing minimize flash on critical sealing faces and inner diameters, supporting reliable sealing performance.
Tolerances & Quality Control
| Parameter | Specification |
|---|---|
| Molded Feature Tolerance | ±0.1 mm typical (geometry-dependent) |
| Mold Cavity CNC Accuracy | Down to ±0.005 mm |
| Hardness Range | 30–90 Shore A, custom durometers available |
| Surface Finishes | Smooth molded, matte, SPI mold textures, anti-static coatings |
Quality Verification:
- Shore A durometer hardness testing per batch
- Non-contact optical profile measurement (primary method for soft elastomers)
- 3D CMM inspection for mold tooling and rigid inserts
- Raw material batch certifications with every shipment
All processes are controlled under our ISO 9001:2015-aligned quality management system.
How to OrderSubmit CAD & Specs: Upload your 2D (PDF/DWG) or 3D (STEP/IGES) files with elastomer grade, durometer (Shore A), color, and estimated quantity.
DFM Review & Quote: Receive a detailed engineering report and transparent quotation, including material recommendations if needed.
Prototype to Production: Fast-turn CNC aluminum tooling produces evaluation samples, scaling to volume production with flexible minimum order quantities.
Global express delivery with protective packaging to your facility worldwide.
Partner with FlexiTurn for your next custom rubber seal or washer project. Contact our engineering team today for a DFM review and fast quote!
Q1. What types of machining services do you offer?
We provide comprehensive CNC turning and milling services. FlexiTurn machines are equipped with 8-station programmable turrets and support both turning and 5-axis milling operations, making them suitable for everything from simple cylindrical parts to complex multi-axis components.
Q2. What materials can you work with?
We machine a wide range of materials including carbon steel, stainless steel, aluminum, plastics, and other engineering-grade materials. If you have a specific material in mind, just send us your requirements and we'll confirm feasibility.
Q3. What is your typical lead time?
Lead times vary depending on part complexity, quantity, and material availability. For prototypes and small-batch runs, we typically deliver within 5–10 business days. For high-volume production, we'll provide a customized schedule after reviewing your drawings. Contact us with your project details for an accurate timeline.
Q4. How do you price your services?
Pricing is based on several factors: material cost, machining time, tooling requirements, setup complexity, and order quantity. We offer competitive rates for both low-volume prototypes and high-volume production runs. Request a quote with your CAD files or drawings and we'll get back to you within 24 hours.
Q5. What quality control measures do you have in place?
We follow strict quality control procedures throughout the machining process. Our CNC systems support programmable precision down to 1 μm, ensuring high accuracy and repeatability. Every batch undergoes dimensional inspection before shipping, and we can provide inspection reports upon request.
