Product Description
The Welker UB4N050A010DER1D000 is a UB4 Series Gold Line Unibody Shot Pin — a pneumatic actuator featuring an integrated anti-rotate square ram widely used in automotive and industrial automation fixtures. It features an aluminum body with a steel ram, a 50mm stroke, 70mm bore, RAP coupler, double-acting single-rod NPT pneumatic actuator, large 4-hole ram (D style), a Pepperl & Fuchs NBN2-F581-100S6-E8-V1 PNP proximity switch monitoring the Retract position, a steel safety orange shroud, and P4 port position. Welker UB4 Shot Pins are NAAMS compatible, require no lubrication, and are resistant to corrosion and weld spatter.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Welker Engineered Products |
| Model / Part Number | UB4N050A010DER1D000 |
| Series | UB4 Gold Line Unibody Shot Pin |
| Product Type | Pneumatic Shot Pin / Retractable Locating Pin |
| Body Material | Aluminum Body, Steel Ram |
| Stroke | 50 mm |
| Coupler Type | RAP (shortens nominal cylinder stroke by 2mm) |
| Actuator Type | Pneumatic Single Rod, NPT Port |
| Options | None (no purge port, no detent) |
| Ram Style | D — Large 4-Hole (8mm Dowels / 11mm Holes) |
| Ram Size | 40mm Square Ram |
| Switch / Sensor Option | ER — Pepperl & Fuchs NBN2-F581-100S6-E8-V1, 4-Wire, 4-Pin, DC M12×1 (PNP), Retract Position |
| Switch Output Type | PNP (Sourcing) |
| Switch Connector | M12 × 1, 4-Pin Male Quick Disconnect |
| Switch Monitored Position | Retract (R) |
| Shroud | Yes — Safety Orange Steel Shroud (Standard) |
| Port Position | P4 |
| Recommended Operating Pressure | 60–80 PSI (flow controls not required) |
| Pneumatic Port Size | 1/4" NPT |
| Push Area | 5.97 sq. in. (40mm bore) |
| Pull Area | 3.49 sq. in. (single rod) |
| Repeatability | ±0.05mm (±0.002") part-to-part |
| Stroke Accuracy | ±0.38mm (±0.015") |
| Max Deflection at Ram End | ±0.13mm (±0.005") up to 75mm stroke |
| Lubrication | Not Required |
| NAAMS Compatible | Yes |
| Mounting Standard | NAAMS L-Block pattern, 15mm spacing, 6× M10×1.5 bolts (torque 40–45 Nm) |
| Approximate Weight (01 Actuator, Steel Ram, 50mm Stroke) | ~18.5 lbs |
| Applications | Retractable Locating Pin, Straight Acting Clamp, Part Stop, Probe Slide, Wedge Lock |
| ISO Certification | ISO 9001 Registered |
We warranty all items for 30 days from date of purchase.
Other Details
We warranty all items for 30 days from date of purchase. If you experience any issues with your item within this period, please contact us and we will work with you to resolve the problem. This warranty covers defects in functionality but does not cover damage caused by misuse, improper installation, or normal wear and tear.Product Videos
Custom Field
GTIN 679523686161
Output Type PNP (Sourcing)
Manufacturer Welker
Part Number UB4N050A010DER1D000
Shelf B-18
Bore Diameter 70 mm
Model UB4N050A010DER1D000
MPN UB4N050A010DER1D000
Type Pneumatic Cylinder
