
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X100-50B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X100-50B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 50 mm up to the full 100 mm directly on your machinery without swapping parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays constant, output force equals a standard ACQ of the same bore: 402.1 N push and 301.6 N pull at 0.5 MPa. This unit includes a male M14x1.5 rod-end thread for direct load coupling, a PT1/8 port, and fixed elastomer bumpers. It ships without a magnet, though the body retains magnetic-switch grooves for future sensing upgrades.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X100-50B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 100 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| 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 |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×100 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Dial in the extend position from 50 to 100 mm on a CNC machining fixture to accommodate varying raw casting widths without fabricating new hard stops.
Adjust the rod extension on a packaging line carton pusher during product size changeovers, using the external lock nut to set the exact 75 mm end point.
Set trial end positions on an electronics assembly press, relying on the 402.1 N push force at 0.5 MPa to seat components before locking the stroke.
When sizing this 32 mm bore actuator, consider the neighbouring options: a 25 mm bore yields 245.4 N push, while a 40 mm bore provides 628.3 N at 0.5 MPa. If your extend endpoint never varies, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version, confirm the 32 mm bore, 100 mm full stroke, 50 mm window, male rod thread, and note that the magnet is omitted. The external adjuster uses an M12x1.25 thread.
Quick checklist
This 32 mm bore cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a push of 562.9 N at 0.7 MPa and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 100 mm, and the external stop provides a 50 mm adjustment window, allowing a usable extend range of 50 to 100 mm.
The external M12x1.25 threaded stop and lock nut mechanically limit how far the rod extends, shortening the stroke without changing the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for end-of-stroke deceleration. It will not hold a load if air pressure is lost; use an external rod lock or pilot-operated check valve for fail-safe holding.
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