For precision adjustment of feed rates

Compression force max. 3,500 N
Stroke 125 mm

Precise adjustment for any type of application: Hydraulic feed controls of the product family VC are ideally suited for the precise tuning of constant feed rates. The thread of the outer body of this closed hydraulic element allows simple assembly. Designs with a smooth body can also be supplied.

As the hydraulic oil is forced out through the throttle opening, a constant feed rate is achieved on the stroke. In the models up to 55 mm stroke, the tried and tested rolling diaphragm, known from ACE shock absorbers, serves as a dynamic seal, as volume compensation of the piston rod and as a reset element.
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CAD Drawings


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Stroke125 mm
A333.5 mm
B150 mm
MM25x1.5 mm

Technical data

Compression force min. 70 N

Compression force max. 3,500 N

Return Force min. 10 N

Return Force max. 60 N

Return Time 2.8 s

Side Load Angle max. 1 °

Compression force 30 N to 3,500 N N

Piston rod diameter Ø 8 mm

Feed rate/Compression force min. 0.013 m/min. at 400 N; max. 38 m/min. at 3,500 N

Impact velocity range At speeds of 0.3 m/s the maximum allowed energy is approx. 1 Nm for units up to 55 mm stroke and approx. 2 Nm for units 75 mm to 125 mm stroke. Where higher energies occur use a shock absorber for the initial impact. Avoid high impact velocities.

Adjustment Infinitely adjustable

Positive stop External positive stops 1 mm to 1.5 mm before the end of stroke provided by the customer.

Damping medium oil, temperature stable

Mounting in any position

Operating temperature range 0 °C to 60 °C


Nylon button PP600 can be fitted onto piston rod. Unit may be mounted in any position.

Safety information

Do not rotate piston rod, if excessive rotation force is applied rolling seal may rupture. External materials in the surrounding area can attack the seal components and lead to a shorter service life. Please contact ACE for appropriate solution suggestions.

On request

Special oil and other special options available on request.

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