Techcon 403L-2 3cc Manual and Air-Powered Rubber Stopper

Description

The Techcon 403L-2 rubber stopper fits 3cc Techcon 400 Series syringe barrels for manual or air-powered fluid dispensing. The thermoplastic rubber component sits behind the loaded material, where it can engage a manual plunger or respond to regulated pneumatic pressure. Its job is to move fluid through the barrel while maintaining contact with the barrel wall.

Manual and Pneumatic Use

For manual dispensing, the matching plunger locks to the stopper and advances it through the 3cc barrel. For air-powered use, a compatible receiver head connects the filled syringe to a time and pressure controller. Both arrangements use the same small barrel format for precise dots, short beads, fills, and other low-volume deposits.

• 3cc Techcon 400 Series syringe barrels
• Manual dispensing with the matching plunger
• Air-powered dispensing with a compatible receiver head
• Adhesives, sealants, pastes, and other compatible fluids

Setup and Handling

Verify the 3cc barrel size and stopper number before assembly. Keep the stopper clean, insert it squarely, and avoid damaging the sealing edge. When filling the syringe, reduce trapped air and cap the outlet during staging. Manual users should confirm that the plunger engages correctly. Pneumatic users should begin with conservative pressure and shot time, then adjust for viscosity, tip size, and deposit requirements.

Check material compatibility before production use. Thermoplastic rubber works with many dispensing fluids, but exposure time, temperature, and chemistry can affect performance. A short process trial can confirm smooth movement, deposit consistency, and an acceptable seal before the assembly is released to routine work.

Specifications

• Part number: 403L-2
• Component type: rubber stopper
• Nominal syringe size: 3cc
• Material: thermoplastic rubber
• Operating methods: manual and air powered
• System family: Techcon 400 Series
• Order unit represented by this SKU: one stopper

Ordering Notes

Choose the Techcon 403L-2 rubber stopper for a 3cc assembly that requires the standard rubber component. Other 400 Series sizes and plastic wiper options are not direct substitutes. Match the stopper to the barrel, plunger or receiver head, fluid, and dispensing method before placing the order.

Browse related dispensers, mixers, nozzles, and syringe components. For additional system information, visit Techcon dispensing resources.

Need Help?

Need help building a complete 3cc manual or pneumatic syringe assembly? Call (800) 220-1966 or email [email protected].