ECO 25 IF-4 Enidine Non-Adjustable Hydraulic Shock Absorber, 1/2-20 Thread, 0.63 in Stroke

The Enidine ECO 25 IF-4 is a non-adjustable hydraulic shock absorber with a 1/2-20 mounting thread, 0.63 in (16.0 mm) stroke and damping constant -4.

Enidine ECO Series non-adjustable hydraulic shock absorbers are tamperproof, giving consistent performance cycle after cycle, and are designed to absorb maximum energy within a compact envelope. The ECO Series is designed with materials and fluids that are safe for the environment and accommodates a wide range of operating conditions, from low velocity/high drive force to high velocity/low drive force.

Specifications:

Manufacturer:	Enidine
Model:	ECO 25 IF-4
Enidine part number:	EF238424
Series:	ECO
Type:	Non-adjustable hydraulic shock absorber
Mounting thread:	1/2-20
Damping constant:	-4
Stroke:	0.63 in (16.0 mm)
Max. energy per cycle:	265 in-lbs/cycle (30.0 Nm/cycle)
Max. emergency energy per cycle:	500 in-lbs/cycle (56 Nm/cycle)
Max. energy per hour:	389,000 in-lbs/hour (44 000 Nm/hour)
Max. reaction force:	625 lbs (2 800 N)
Nominal coil spring force, extended:	1.0 lbs (4.5 N)
Nominal coil spring force, compressed:	2.5 lbs (11.0 N)
Max. propelling force:	200 lbs (890 N)
Weight:	2.4 oz (68 g)

• One hex jam nut is included with every shock absorber.
• The emergency energy rating is for emergency use only; Enidine estimates a cycle life of 1-5 cycles if used at the maximum emergency rating.

Source: Enidine 2026 price list; ratings from the Enidine shock absorber catalogue (p.47).