
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The ACQJ32X175-30 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the EXTEND end position. You can fine-tune the extend stroke on the machine from 145mm up to the full 175mm without changing parts. The RETRACT stroke remains unaffected. Because the piston area stays the same, the force is identical to a standard ACQ of this bore.
This long-stroke variant exceeds the 100mm standard maximum for a 32mm bore, making it a made-to-order solution for extended reaches. It features a 16mm piston rod, a PT1/8 port, and fixed elastomer bumpers at both ends for end-of-stroke deceleration. The body includes sensor grooves, though this specific configuration ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 175 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. |
| ×175 | 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 exact clamping reach on machining fixtures during setup changes, using the external stop to shorten the extend stroke from 175mm down to 145mm as needed.
Adjust the physical end-stop position on packaging conveyor lines to accommodate different carton lengths without replacing the cylinder or reprogramming the motion controller.
Utilize the 175mm long-stroke capability to push finished parts out of deep machine beds, fine-tuning the ejection distance on the fly to prevent parts from falling.
When sizing this unit, consider the neighbouring bores: a 25mm bore yields 245.4N push at 0.5MPa, while a 40mm bore provides 628.3N. This 32mm bore generates 402.1N push and 301.6N pull at 0.5MPa. If your application never requires end-position adjustments, a fixed-stroke ACQ cylinder will suffice. When ordering, confirm the 32mm bore, 175mm full stroke, 30mm window, female rod thread M8x1.25, and that no magnet is included.
Quick checklist
The usable extend range is 145-175mm (a 175mm full stroke minus up to a 30mm window). It delivers 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The retract stroke is unaffected by the adjuster.
The external M12x1.25 threaded stop with lock nut changes the extend stroke length only, meaning the force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions. Note that this model ships without a sensor magnet.
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