
The AirTAC Airtac ACQ Ultra Thin Air Cylinder ACQ50X25S is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø50mm bore and 25mm stroke, PT1/4 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.
The AirTAC ACQ50X25S is a double-acting JIS compact cylinder engineered for tight axial spaces, delivering 981.8 N of push force and 824.6 N of pull force at 0.5 MPa. Its short C-clip and riveted body construction significantly reduces overall depth compared to traditional round-body alternatives, making it ideal for shrinking machine footprints.
This 50 mm bore variant features a 20 mm piston rod, a PT1/4 port, and a factory-installed magnet for position sensing. The integrated magnetic band accepts AirTAC reed or electronic switches to track the 25 mm travel. End-of-stroke energy is managed by fixed NBR elastomer bumpers rather than adjustable cushions, so high-speed cycles may require external shock absorption.
| Model | Airtac ACQ Ultra Thin Air Cylinder ACQ50X25S |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).
Provides compact ejection force for plastic injection molds where 981.8 N of push clears finished parts from deep cavities within a tight tooling envelope.
Drives short 25 mm diverting gates on logistics conveyor lines, using the integrated magnet to trigger solid-state switches for precise package routing.
Actuates secondary clamping or positioning pins on metal stamping presses, saving machine depth while handling the 824.6 N pull requirement.
When sizing this model, the 40 mm bore offers a smaller footprint with 628.3 N push at 0.5 MPa, while stepping up to the 63 mm bore yields 1558.6 N push for heavier demands. To confirm the correct ordering details for your build, verify the 50 mm bore, 25 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the required -S magnet option.
Note that a standard ACQ body will not hold a load if air pressure drops or the valve is centered; the rod drifts until the bumper arrests it. For fail-safe vertical positioning, incorporate an external rod lock or a pilot-operated check valve into your circuit.
Quick checklist
The 50 mm bore generates 981.8 N push and 824.6 N pull at 0.5 MPa, 1374.4 N push at 0.7 MPa, and a maximum push of 200 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, runs at 30-500 mm/s, and functions in -20 to +70 C temperatures.
It uses fixed NBR elastomer bumpers at each end to absorb impact, which are not adjustable, so high energy cycles may need external shock absorbers. The -S option includes a built-in magnet that works with AirTAC reed or electronic switches mounted in the body grooves.
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