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Product Details

Model 250 Micro Cylinder Lock

With Segen Quick Change

Reduce Downtime and Increase Profitability

Make changeovers simple, safe and secure. Precisely and quickly locate your smaller tools with Segen’s Micro Cylinder. Significantly reduce downtime, setup and production costs. The Segen Quick Change system will pay for itself time and time again.

Micro Sized, Numerous Applications
The PD250 micro cylinder, with a flange diameter of 15/16″ (0.9375″) x 0.060″, and weighing in at a mere 0.13 lbs. (including knob) is a perfect fit for holding smaller tools, logos, mold inserts, dies, jigs and fixtures where the performance requirements are for small envelopes and reduced locking forces.

Precision, Speed, Durability
Engineered for long life with a tested lifespan of over 40,000 cycles, the micro cylinder’s load rating of 500 lbs. provides the precision, accuracy and stability for smaller and lighter load applications. The stainless steel, corrosion resistant micro PD250 cylinder locks are temperature rated from -65 to 450 degrees F.

Variety, Simplicity, Efficiency
Both standard and metric thread versions are available along with a variety of high strength, hardened steel knobs. The micro cylinders can be customized for sealed applications in hostile environments. Suitable for in plate mounting utilizing the rear air fitting or enclosed in a housing with a supply manifold, the micro cylinder locks are easily installed using a clever installation tool that fits any standard 1/4″ socket drive.

Installation Photos


  1. Tooling Technology has no way of testing every possible scenario in which our products could be used. If you are unsure about choosing the right product for your proposed application, please contact us.
  1. The published load ratings for each product are reliant on mating the knobs and cylinders with fasteners that are compatible with those respective loads.