Description
The Techcon 700 Series 5cc straight wall piston seats inside a 5cc syringe barrel and drives fluid forward as a dispensing controller or manual plunger advances it, without leaving product behind on the barrel wall. The red color marks it as the straight wall profile, built for higher viscosity fluids that string or bounce with a standard wiper piston.
Where It Fits in a Syringe Barrel
Techcon sizes the straight wall piston to the 700 Series 5cc barrel bore so the fit stays snug through the full stroke, sealing against the wall instead of letting air slip past the piston face. Shops running two part structural adhesives, heavier silicones, or filled epoxies through 5cc barrels use the straight wall version over a standard wiper piston because it resists the stutter step that shows up as skipped beads or inconsistent bead width on thicker material.
How It Holds Up
The piston is molded from thermoplastic rubber rated to the same 100 psi (6.9 bar) ceiling as the rest of the 700 Series barrel and receiver head system, so it holds its seal at full line pressure without rolling or deforming inside the barrel. Because the straight wall design keeps full-face contact with the bore, it holds a consistent seal cycle after cycle rather than losing grip as viscosity or back pressure increases.
Installation Notes
Insert the piston squarely into the open end of the barrel and push it flush before loading fluid, since a piston seated at an angle can trap an air pocket that shows up as a gap in the first few shots. Keep a light film of the fluid being dispensed on the piston face during insertion rather than dry fitting it, which helps the straight wall seal seat evenly on the first stroke. Store spare pistons in their original packaging until use to keep the sealing face free of dust and grit.
Syringe Barrel Piston Specifications
| Spec | Detail |
|---|---|
| SKU | TEC7050006R-1000 |
| Brand | Techcon |
| Barrel size | 5cc |
| Profile | Straight wall |
| Color | Red |
| Material | Thermoplastic rubber |
| Max operating pressure | 100 psi (6.9 bar) |
| Pack quantity | 1,000 pieces |
Stock this piston alongside matching 5cc barrels and receiver heads for a complete bulk-pack dispensing setup, or keep it on hand as a running spare on a high-volume dispensing line. Browse the full dispensers, mixers, and nozzles category for barrels and receiver heads that pair with this piston. Techcon covers the full 700 Series lineup on its manufacturer site.
Need Help?
Need help picking a straight wall piston versus a standard wiper piston for your fluid viscosity? Call (800) 220-1966 or email [email protected].
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