Medical Syringe Silicone Stopper/Plunger/Plug Seal Rubber Piston

• Material: Silicone Rubber
• Application: Machinery, Industrial Component, Electronic Product, Vehicle, Household Appliance, Medical, Sealing Application
• Effect: Seal
• Cross-Section Shape: ODM
• Type: Pistons
• Condition: New
• Certification: ISO 9001: 2015
• Materials: Silicone/Rubber/Polyurethane/PTFE
• Size: Can Be Costomized
• Shapes: Custom
• Color: Any Pantone Color Is Available
• Working Temperature: -40c~120c
• Special Property: Oil Resist, Anti-Dust, Waterproof, Wear Resistance
• Usages: Household Application, Industry, Machine
• Forming: Compression Molding or LSR Injection Molding
• Functions: Fixed Sealing, Rotary Sealing, Shaft Sealing
• Applications: Equipment Seal, Hydroseal, Pump Seal
• Transport Package: Poly Bags, Carton Boxes
• Specification: custom
• Trademark: Better
• Origin: Xiamen, China
• HS Code: 3926901000
• Production Capacity: 1000000PCS/Month

Product Description

Medical Syringe Silicone Stopper/Piston/Plug Seal Rubber Plunger
Rubber Plunger, also called Rubber Piston, Rubber Plug Seal and Silicone Stopper, which is used for fluid seals and specifically designed as piston seals to work in pneumatic and hydraulic cylinder applications. We can custom made Rubber Plunger with medical grade silicone, liquid silicone rubber(LSR), NBR, FKM, PU Rubber, etc, by Silicone Rubber Compression Mold tooling or LSR injection Molding (LIM) with middle mold plates for you.

Rubber Plunger Seal & Lip Seals
application environment and working speed ranges:
Working pressure: < 25 MPa
Working temperature: -40~+120ºC
Medium: hydraulic oil, water, air
NBR: 0.01~0.6 m/s
FKM: 0.05~0.3 m/s
PU rubber: 0.01~1 m/s


For Rubber Plunger Seal& Piston Rod purchasing, the following factors should be comprehensively considered:
Piston Rod movement speed
Piston Rod's starting friction
Plunger Seal Working pressure
Plunger Seal Working temperature
Plunger Seal working medium viscosity
Allowable tolerance for leakage
Plunger Seal's groove size
Plunger Seal's fit tolerance for Piston Rod


Custom Silicone Rubber Plunger demands:    
1.Offer 2D/3D design drawings or Samples
2.Hardness &Hardness tolerance Demands
3. Size tolerance
4. Materials Demands: Rubber, Silicone, NBR, etc
5. Quantity

Our Factory