
Hygienic hardened index plungers USIT® Stainless Steel
Material
Body - Stainless Steel 1.4404, Bright.
Indexing Pin - Stainless Steel 1.4404, Hardended, Bright.
Seal - 75 EPDM 295 (Black)/75 Fluoroprene® XP (Blue).
Notes:
Hygienic conform design. Stainless steel 1.4404.
Suitable for CIP/SIP cleaning.
Resistant to polar and non-polar media as well as aromatic substances.
Certified according to DGUV test.
Temperature range:
75 EPDM 295 (Black) : -40 °C to 150 °C.
75 Fluoroprene® XP (blue): -15 °C to 200 °C.
P1= Spring Initial Pressure (kgf)
P2= Spring Final Pressure (kgf)
From £67.80 £56.50
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What are Indexing Plungers with Hygienic USIT® Washers?
Indexing Plungers with Hygienic USIT® Washers are stainless steel, spring-loaded locating components engineered to position, lock, or release moving machine parts. Alternatively known as sanitary pull pins or spring plungers, this specialized version features a conical collar designed to seal the mounting point with a matching Hygienic USIT® seal washer.
An indexing plunger holds a machine assembly securely in a defined position, protecting it against unwanted movement caused by lateral forces. To change positions, the operator manually pulls the knob to retract the locating pin. We also offer parking-type (lockout) variations featuring a specialized slot that keeps the pin retracted for extended periods until manually released.
Key Features
- Hygienic Conical Collar: Specially engineered to compress a Hygienic USIT® Seal Washer flush against the mounting surface, creating a cavity-free seal that eliminates bacteria traps at the thread entry.
- CIP & SIP Cleanable: Built to withstand Clean-In-Place (CIP) and Sterilisation-In-Place (SIP) regimes, allowing full automated sanitisation without disassembling the component.
- Ultra-Smooth Surface Finish: Features an expert surface roughness of Ra < 0.8 µm, making it incredibly difficult for product debris, process fluids, or chemical residues to adhere.
- Premium Marine-Grade Steel: All metal components are forged from high-durability 316 Stainless Steel (1.4404) to prevent pitting or oxidation from harsh industrial washdowns.
- Certified Seal Material Options:
- 75 EPDM 295 (Black): High-performance synthetic rubber built for temperatures ranging from -40 °C to +150 °C.
- 75 Fluoroprene® XP (Blue): Premium specialist elastomer offering advanced chemical resistance and a thermal range of -15 °C to +200 °C.
- DGUV Test Certified: Fully approved according to strict DGUV safety and hygiene testing regulations for peace of mind in regulated environments.
Industrial Applications
These sanitary spring-loaded positioning pins are purpose-built for cleanrooms, processing lines, and packaging equipment requiring frequent modular reconfiguration:
- Food, Beverage & Dairy Processing: Adjusting high-vibration conveyor guide rail settings, sorting systems, and line changeover parts.
- Pharmaceutical & Chemical Production: Securing sliding assemblies, cleanroom cabinet panels, and automated packaging machinery lines.
- Sanitary Machinery Fabrication: Locking adjustable safety guards, removable machine covers, and sliding equipment frames.
Alternative Industry Names
- Hygienic Indexing Plungers / Retractable Pins
- Sanitary Spring Plungers / Locating Plungers
- Stainless Steel Positioning Pins / Detent Plungers
- Locking Pins / Spring-Loaded Pull Pins
| Material | Stainless Steel |
|---|---|
| Unit Type | Metric |
| Stock Guaranteed | No |






















