Description
Custom Low Outgassing Silicone Rollers for Vacuum Use – Non-Marking Smooth Conveyor Roller Solution
Why Choose This Low Outgassing Silicone Roller?
The strength of this product lies in the balanced design between material and application. We have worked on enough custom roller projects to know that surface finish, hardness and low-outgassing behavior must all be considered together, especially in vacuum or clean-room conditions. Each roller features an aluminum or stainless core bonded with a high-purity silicone compound, providing a non-marking surface that prevents residue build-up and protects sensitive products during transport.
Custom roller compounds with low-outgassing properties, hardness from Shore A 20° to 80°, and surface finishes (smooth, Ra 0.4–3.2 µm) are available. The low-outgassing formulation helps your equipment reach the required vacuum level faster and keeps the chamber cleaner, which directly improves product yield. ISO9001 certified, our rollers offer superior heat resistance (up to 200°C) and consistent dimensional tolerances, meaning longer service intervals and fewer replacements.
Typical applications: Vacuum coating systems, semiconductor handling equipment, clean-room conveyor lines, film processing machinery, packaging equipment, and automated material handling systems where non-marking and cleanliness are critical.
Technical Specifications
Custom non-marking silicone coated rollers for smooth conveyor and vacuum applications can be supplied in the typical ranges below. As a China OEM/ODM manufacturer, we support customized diameters, lengths, core materials and silicone compounds.
| Custom Low Outgassing Silicone Roller – For Vacuum & Conveyor | |
| Outer Diameter | 20 – 200 mm (customized per drawing) |
|---|---|
| Length / Width | 100 – 2000 mm (custom, per drawing) |
| Coating Material | High-purity silicone (VMQ), low-outgassing grade |
| Core Material | Aluminum / Stainless steel, or other metal / plastic per drawing |
| Hardness Range (Shore A) | 30 – 70° standard (20 – 80° possible) |
| Outgassing Performance | TML < 1.0%, CVCM < 0.1% (ASTM E595) |
| Temperature Range | -40°C to +200°C (high-temp grade available) |
| Surface Finish | Smooth, non-marking (Ra 0.4 – 3.2 µm) |
| Certifications | ISO9001, RoHS, REACH (scope confirmed per project), Test Reports |
| Packing Options | Plastic bags, cartons, wooden case, pallet, container, etc. |
| Services & Support | 24/7 customer service, OEM/ODM support, expert material selection advice |
✔ Low outgassing for vacuum & clean-room use. ✔ Non-marking surface protects sensitive products. ✔ Customizable diameter, length & hardness – contact us for bulk orders.
Details Images
Commonly Used Elastomer Properties (Material Performance)
| Compound | Hardness Range (Shore A) | Abrasion Resistance | Tear Resistance | Load Bearing |
|---|---|---|---|---|
| Silicone | 40-90 | 1 | 1 | 1 |
| Nitrile/PVC | 20-95 | 4 | 3 | 3 |
| EPDM | 20-95 | 4 | 3 | 3 |
| Nitrile Rubber | 20-95 | 3 | 3 | 3 |
| Neoprene | 5-95 | 3 | 4 | 4 |
| Hypalon | 30-95 | 4 | 4 | 4 |
| Hydrogenated Nitrile | 50-98 | 5 | 5 | 5 |
| Natural Rubber | 25-98 | 5 | 5 | 5 |
| Polyurethane | 20-98 | 5 | 5 | 5 |
| Carboxylated Nitrile | 45-95 | 5 | 5 | 5 |
Ratings: 1 = low, 5 = high. Silicone offers excellent heat resistance and non-stick properties but lower mechanical strength; for heavy-duty conveying, polyurethane or natural rubber may be preferred. Our factory can produce custom hardness from Shore 20A to 98A across various compounds, and we help you choose the best material for your specific application. For the low-outgassing grade used in our custom vacuum rollers, typical material values include hardness 30–70 Shore A (ASTM D2240), tensile strength 5–9 MPa (ASTM D412), tear resistance ≥15 kN/m (ASTM D624), TML <1.0% and CVCM <0.1% (ASTM E595), with no residue after extended contact in our internal 500 h test. The working temperature range is –40 °C to +200 °C.
About ZHXPRECI – China OEM/ODM Factory
About Us
Customers Visiting
As a China-based manufacturer and OEM/ODM supplier of industrial silicone rollers and elastomer components since 2010, ZHXPRECI serves clients in over 50 countries. We offer customization — from roller hardness (Shore A 20°~80°) to core materials and surface patterns. Our products are tested to meet ISO9001 standards, supporting reliable performance for your vacuum, conveying and material handling equipment. Wholesale orders are welcome with competitive direct pricing. We provide expert advice and support from prototype to mass production. Our goal is to be a reliable professional custom solution for rollers used in demanding environments, whether you need a single replacement unit or a large volume supply program.
Factory & Equipment
Our Certifications (ISO9001, RoHS, Testing Reports)
Production & Inventory Policy
Lead time: Actual delivery depends on raw material supply, machine availability and seasonal workload. We provide our best estimate after order confirmation and communicate progress promptly.
Stock status: We normally do not keep idle stock, but some popular standard sizes may be available. Stock levels change with sales and production, so please contact us for real-time availability before ordering.
Bulk & urgent orders: For high-volume or rush projects, please discuss capacity and scheduling with us in advance. We will do our best to match your timeline while keeping quality stable.
Frequently Asked Questions
1. Can you customize the roller size and shaft for my vacuum or conveyor equipment?
Yes, customization is the core of our service. We can adjust diameter, length, core material, shaft design and silicone hardness according to your drawings or target dimensions. As an OEM/ODM manufacturer in China, we regularly produce non-standard rollers for clients in different industries, and we provide expert advice on the best material choice for your specific process.
2. What outgassing performance can I expect from these custom low outgassing silicone rollers for vacuum use?
Our low-outgassing silicone formulation typically provides TML below 1.0% and CVCM under 0.1% when tested according to ASTM E595. This keeps vacuum chambers clean and reduces the risk of contamination on sensitive products. If your application requires even stricter levels, please share the target value before production and we will assess feasibility based on the compound and process.
3. Will the roller leave marks on glass, coated film or painted surfaces?
The non-marking surface is designed to avoid residue or micro-abrasion on delicate materials. In our internal 500-hour contact test, no visible marks were left on glass or coated surfaces. That said, actual performance can vary with process conditions, so we recommend a sample run before full-scale orders.
4. What is the MOQ and lead time for custom silicone rollers?
MOQ is typically 10 pieces for custom sizes, though this depends on the core material and outer diameter. Lead time is usually 2–3 weeks after order confirmation, but actual delivery can be affected by material procurement and production scheduling. We will always give you a clear estimate and keep you updated.
5. Do you support wholesale supply and OEM/ODM branding?
Yes, we support wholesale, OEM and ODM. We can produce rollers under your label, apply your required packaging, and handle export documentation. For large projects we can also provide design suggestions and price advice based on your market and target application, helping you stay competitive.
6. What payment and shipping methods do you accept?
We accept T/T, L/C and some flexible payment terms for confirmed orders. For delivery we regularly work with air, sea and express carriers depending on weight and urgency. Shipping cost and transit time will be confirmed in the quote for your destination.
7. How do you ensure quality for every batch?
Our factory follows ISO9001-based quality procedures, and we perform incoming material inspection, mid-production checks and final dimensional or outgassing checks before packing. For special projects, third-party inspection is welcome. We keep clear test records and maintain a practical warranty policy to support your purchase without overpromising.
Looking for a reliable manufacturing partner for custom low outgassing silicone rollers?
Get in touch for quick quotes, custom samples, and volume discounts. These rollers are available for sale with wholesale options, and our engineers can give you expert advice on material selection and lead time before you commit. We are here to support your project from design to delivery.
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