
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X50-40 is a double-acting JIS compact cylinder with a 32mm bore and 50mm full stroke. An external M12x1.25 threaded stop with lock nut lets you fine-tune the extend end position on the machine, providing a usable extend range of 10-50mm. The retract stroke remains unaffected.
Because the piston area is unchanged, the force is identical to a standard ACQ of this size, delivering 402.1N push and 301.6N pull at 0.5 MPa. The unit features a fixed elastomer bumper at each end and includes sensor grooves, though this specific configuration ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 50 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. |
| ×50 | 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 extend position of a clamping fixture on a CNC mill without machining custom spacers, accommodating different part heights.
Quickly reposition a sorting gate on a packaging conveyor line by adjusting the extend stop to handle varying package widths.
Safely test and incrementally adjust the end position of a press ram during new product line setup to prevent over-travel.
If your application needs less push force, the 25mm bore provides 245.4N at 0.5 MPa, while stepping up to the 40mm bore yields 628.3N. When exact end-of-stroke positioning is unnecessary, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 32mm bore, 50mm full stroke, 40mm adjustment window, female M8x1.25 rod thread, and PT1/8 port.
Quick checklist
The usable extend range is 10-50mm. The force is identical to a standard ACQ: push 402.1N and pull 301.6N at 0.5 MPa, push 562.9N at 0.7 MPa, and a maximum push of 82kgf at 1.0 MPa. The adjustment window is 40mm.
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 is unchanged. The retract stroke is unaffected, and deceleration relies on a fixed elastomer bumper rather than an adjustable air cushion.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.