Custom Rubber Mold Manufacturer in China
From prototype tooling to high-volume production molds, SENSES MOLD help automotive, medical, industrial and electronics companies manufacture precision rubber and silicone parts with stable quality, tight tolerances and reliable lead times.
With 20+ years of rubber mold manufacturing experience, our engineering team supports complete tooling development including DFM analysis, Moldflow optimization, precision machining, mold assembly and production validation.
- ±0.005mm Precision
- Multi-Cavity up to 128 Cavities
- Free Moldflow & DFM Report
- MOQ from 1 Set
- 24H Quotation Support
- NDA Before Drawing Review
20+
Years in Mold Tooling
5,000+
Rubber Mold Project
ISO 9001:2015
IATF 16949
3,000+SQM
Factory Area
Rubber Mould Problems We Help You Solve
Many rubber mold buyers struggle with unstable tooling quality, excessive flash, poor venting design, inconsistent dimensions and long mold modification cycles.
At SENSES MOLD, our engineering and tooling teams help customers reduce manufacturing risks before production starts through early-stage DFM evaluation, mold structure optimization and production-oriented tooling design. Common issues we help prevent:
- Air traps and burn marks from insufficient venting
- Excessive flash caused by poor parting line design
- Excessive flash caused by poor parting line design
- Dimensional instability during high-volume production
- Long lead times caused by repeated mold modifications
- Low production efficiency from unbalanced cavity layouts
As an IATF 16949 certified rubber mold factory in Guangdong, China, we focuses on tooling stability, repeatability and long-term production reliability for automotive, medical and industrial applications.
Three Rubber Mold Types. One Decision That Affects Every Part You Produce.
Choosing the wrong rubber mold type means higher tooling costs, more flash to trim, shorter mold life, or parts that fail dimensional inspection. We manufacture all three major rubber mold tooling types — compression molds, transfer molds, and LSR (liquid silicone rubber) molds — from our IATF 16949 and ISO 9001 certified facility in Guangdong, China. Use the comparison below to identify the right tooling for your application, or submit your drawing for a free DFM recommendation within 24 hours.
Compression Mold
A pre-weighed rubber blank is placed directly into an open mold cavity. Heat and press pressure cure the material into shape. The simplest and most cost-efficient rubber mold tooling method — ideal when part geometry is straightforward and high precision is not the primary requirement.
- Suitable For: Large rubber parts, Thick-wall rubber products, Simple geometry rubber components, Medium to high-volume production.
- Key Advantages: Lower mold tooling cost, Shorter mold manufacturing lead time, Stable production performance.
- Typical Products: Rubber gaskets, Rubber seals, Anti-vibration rubber parts, Rubber pads, Industrial rubber components.
- Compatible Materials: NR, EPDM, NBR, SBR, CR
Transfer Mold
Material is placed in a pot above the cavity and forced through sprues into the closed mold. Ideal for complex geometries, insert molding, and tighter tolerances than standard compression molding.
- Suitable For: Intricate part designs, Overmolding with metal inserts, Medium-sized precise rubber components.
- Key Advantages: Shorter production cycle times, Better dimensional control, Less flash on finished parts.
- Typical Products: Complex electrical connectors, Lip seals, Diaphragms, Specialized valve seals.
- Compatible Materials: EPDM, Silicon, Viton, NBR
LSR Mold
High-precision injection molding for liquid silicone rubber. Outstanding biological compatibility, extreme thermal stability, and perfect for automated high-volume medical or consumer grade components.
- Suitable For: Medical-grade devices, Food-contact parts, High-volume automated production lines.
- Key Advantages: Extremely high precision, Flashless processing, Outstanding product consistency.
- Typical Products: Medical valves, Baby bottle nipples, Waterproof seals, Consumer electronics skin-contact parts.
- Compatible Materials: Liquid Silicone Rubber (Platinum-cured)
Looking for a reliable compression rubber mold company in China? Contact SENSES MOLD for free DFM analysis and tooling evaluation.
Send us your drawings or samples for a manufacturability review.Rubber Mold Process Comparison: Compression Mold vs Transfer Mold vs LSR Mold
All specifications reflect standard tooling produced at our Guangdong facility under IATF 16949 and ISO 9001 quality management systems. The table below covers every key decision factor — tooling cost, tolerance, lead time, and industry fit — so you can choose the right process before sending an inquiry.
| Specification | Compression Mold | Transfer Mold | LSR Mold |
|---|---|---|---|
| Tooling cost | Lowest — most economical | Mid-range | Premium — highest upfront |
| Part dimensional tolerance | ±0.05–0.10 mm | ±0.05–0.10 mm | ±0.02–0.05 mm |
| Part complexity | Simple to moderate | Moderate to complex | High-precision, thin-wall |
| Flash / burr control | Moderate — requires trimming | Low — minimal post-processing | Near-zero — near net shape |
| Insert / over-molding | Difficult | Excellent | Achievable |
| Automation capability | Limited | Moderate | Full automation possible |
| Prototype mold lead time | 7–10 days | 10–15 days | 15–20 days |
| Compatible rubber materials | NR · EPDM · NBR · SBR · CR · Neoprene | NBR · EPDM · FKM · HNBR · CR · NR | Liquid Silicone Rubber (LSR) only |
| Mold steel used | P20 (standard) | P20 / H13 | H13 / S136 (mirror finish) |
| Typical mold life | 50,000–200,000 shots | 500,000–1,000,000+ shots | 500,000–1,000,000+ shots |
| Medical / food-grade | Not typical | Possible with FKM | Yes — primary application |
| IATF 16949 applicable | ✓ Yes | ✓ Yes | ✓ Yes |
| Primary industries | Industrial · Construction · Automotive general | Automotive · Oil & Gas · Heavy industrial | Medical · Food & Baby · Electronics · Pharma |
Which Rubber Tooling Type Is Right for Your Product?
Choose based on your part requirements — or send us your drawing for a free recommendation.。
Choose Compression If…
Your priority is low tooling cost and fast delivery
- Part shape is simple or moderately complex
- Wall thickness is above 6 mm
- Tight tolerances are not critical (±0.050-0.10mm acceptable)
- Flash trimming is acceptable in your production line
- Materials: NR, EPDM, NBR, SBR, or Neoprene
- Application: industrial gaskets, rubber pads, construction seals
Choose Transfer If…
You need complex shapes, inserts, or tighter tolerances
- Part geometry has undercuts, fine features, or thin walls
- Metal inserts or over-molding are required
- Dimensional tolerance of ±0.05–0.10mm is required
- Minimal flash is important to reduce trimming labor
- Materials: NBR, FKM, HNBR, or EPDM
- Application: automotive seals, O-rings, bonded rubber-metal parts
Choose LSR If…
You require liquid silicone, medical grade, or high automation
- Material must be liquid silicone rubber (LSR)
- Application is medical, food-contact, or baby product
- Part precision requires ±0.02–0.05mm tolerances
- High-volume automated production is planned
- Near-zero flash is essential to avoid post-processing
- Application: medical seals, infant products, electronic IP67 gaskets
Not Sure Which Mold Type You Need?
Send Your Drawing — Our Engineers Will Recommend the Right Mold in 24H
Send us your 2D or 3D drawing in any format (STEP, DWG, IGES, or PDF) and our engineering team will deliver a free Design for Manufacturability (DFM) report within 24 hours — including the recommended mold type, steel grade, and a detailed quotation. Your drawing is protected by a signed NDA before any engineer reviews it. Serving customers in 50+ countries from our IATF 16949 certified facility in Guangdong, China.
Rubber Mold Process: From Drawing to Delivery
Every custom rubber mold we manufacture — whether a compression mold, transfer mold, or LSR mold — follows the same rigorous six-step process. We designed it to be fully transparent so that procurement managers and engineers at every stage know exactly what is happening, when it will be done, and what documentation they will receive. Our rubber mold manufacturing facility in Guangdong, China holds both ISO 9001:2015 and IATF 16949 certification, meaning every step below meets automotive-grade quality standards.
Drawing Submission & IP Protection
Send us your 2D or 3D drawing in any format — STEP, IGES, DWG, DXF, or even a hand-sketched PDF. Before a single engineer opens your file, we sign a mutual Non-Disclosure Agreement (NDA). Your design, dimensions, and application remain strictly confidential throughout the entire rubber mold manufacturing process. A dedicated project engineer is then assigned to your account as your single point of contact from quotation to delivery.
- STEP / IGES / DWG / PDF accepted
- Dedicated project engineer
- 2D drawings also accepted
- NDA signed before review
Free DFM Analysis & Mold Quotation
Within 24 hours of receiving your drawing, our engineering team delivers a Design for Manufacturability (DFM) report — at no charge. The DFM covers recommended mold type (compression, transfer, or LSR), optimal steel grade, cavity layout, parting line, and any design risks that could affect part quality or mold longevity. A detailed mold quotation and confirmed lead time are issued alongside the DFM, so you have everything needed to make a decision without a single back-and-forth delay.
- DFM report — free of charge
- Mold type recommendation
- Steel grade selection
- Quotation + lead time
Mold Design Review & Order Confirmation
Once you approve the DFM and quotation, a 50% deposit confirms production. Our mold designers produce complete 3D mold design drawings — including cavity layout, cooling channels, ejection system, and runner design — for your review and written approval before any steel is ordered or cut. This approval checkpoint eliminates the most common source of mold revision disputes and ensures your custom rubber mold tooling is built exactly to specification from the very first cut.
- 50% deposit to confirm
- 3D mold design for approval
- No steel cut before sign-off
- IATF 16949 design review
CNC Machining, EDM & Surface Finishing
Mold fabrication begins with high-precision CNC machining to ±0.005mm, followed by EDM (Electrical Discharge Machining) to achieve intricate cavity geometries at ±0.005mm. Mold steel options include P20 (general purpose), H13 (LSR and high-temperature), S136 (medical-grade mirror finish), and 718H (extended service life). Surface finishing — mirror polish Ra0.4, grain texture, hard chrome, or nitriding — is completed to your specification. Progress photos are shared at each major machining milestone.
- CNC ±0.005mm
- EDM ±0.005mm
- P20 / H13 / S136 / 718H
- Progress photos shared
Mold Trial (T1) & Sample Part Approval
The completed rubber mold undergoes a full T1 trial run under production conditions. A minimum of three to five sample parts are produced and 100% dimensionally inspected against your drawing tolerances using our CMM coordinate measuring machine. A complete First Article Inspection (FAI) report is issued with every dimension recorded. Physical samples are shipped to you for review and written approval before any mass-production tooling or cavities are released — so you never accept a mold that doesn't perform to spec.
- T1 mold trial run
- CMM dimensional inspection
- FAI report included
- Physical samples shipped
Mold Delivery, Documentation & Warranty
Your approved rubber mold is cleaned, treated with anti-rust protection, and packed in a custom wooden crate for safe international shipping. Shipping terms available: FOB Guangdong, CIF, or DDP to your door. Every mold ships with a complete documentation package: DFM report, mold design drawings, T1 inspection report, and Certificate of Conformance (CoC). All rubber mold tooling is covered by a 12-month warranty against workmanship defects and any dimensional deviation from your approved drawings — free of charge.
- FOB / CIF / DDP shipping
- Full documentation package
- Certificate of Conformance
- 12-month mold warranty
Our Guarantee
12-Month Warranty on Every Rubber Mold We Build
Every rubber mold manufactured in our Guangdong facility — compression, transfer, or LSR — is backed by a 12-month warranty covering all workmanship defects and any dimensional deviation from your approved drawings. If a mold fails to perform as specified within 12 months of delivery under normal operating conditions, we repair or replace it at no cost to you. This warranty applies to all mold tooling regardless of order volume, and is fully documented in our standard purchase agreement.
Why Global Buyers Trust Senses Mold as their Rubber Mold Making Supplier?
Our rubber mold manufacturing facility in Guangdong, China has been building custom compression, transfer, and LSR mold tooling since 2005. We hold both IATF 16949:2016 and ISO 9001:2015 certification — fewer than 5% of rubber mold manufacturers in China carry IATF 16949. Every mold is built, inspected, and documented to the same standard demanded by the world’s most stringent automotive and medical OEM supply chains
20+
Years of rubber mold tooling experience
5000+
Custom mold projects completed
2 cerfification
ISO 9001:2015 & IATF 16949
3,000+SQM
Factory Area
100+
Countries served globally
CNC Machinining
EDM Machinining
Mold Making
Quality Control Process
IATF 16949 Quality Control — Every Mold, Every Time
Five mandatory checkpoints. Every record retained 10 years. Fully auditable under IATF 16949.
QC 01
QC 02
QC 03
QC 04
QC 05
Manufacturing Equipment
Precision Machinery for Every Rubber Mold Type
CNC machining, EDM cavity finishing, and CMM verification — maintained under IATF 16949 preventive maintenance with calibration records traceable to national standards.
CNC Machining Centre ±0.005 mm
EDM Machine ±0.005 mm
CMM Coordinate Measuring ±0.002 mm
Surface Grinder Ra 0.4 µm
Ready to Audit Us?
Factory Visits Welcome — All Certifications Available on Request
Frequently Asked Questions About Rubber Mold Manufacturing
Ready to Start Your Rubber Tooling Project?
Send your part drawing and tell us your requirements. Our mold engineers will review your design, run a full DFM analysis, and respond with a detailed, transparent quote within 24 hours — no hidden fees, no obligations.
Accepted file formats: STEP · IGES · STP · DWG · PDF · DXF. Response within 24 hours · English-speaking engineering team · Dongguan, China
Injection Mould · Die Casting Die · Stamping Die · Silicone Mould · Vacuum Casting · Thermosetting Mould