
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X15-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 15mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X15-10B is a double-acting JIS compact cylinder with a male-thread piston rod end (M14x1.5) that couples directly to your load. It features an external threaded stop with a lock nut on the extend side, allowing you to fine-tune the extend end position on the machine without swapping parts. The usable extend range is 5-15mm, shortening the 15mm full stroke by up to 10mm, while the retract stroke remains unaffected.
Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore. At 0.5MPa it delivers 628.3N push and 527.8N pull, with a maximum push of 128kgf at 1.0MPa. The unit uses a PT1/8 port, a Ø16mm rod, and fixed elastomer bumpers at both ends for end-of-stroke deceleration.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X15-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 15 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 extension on a CNC fixture during setup, allowing 5-15mm of travel adjustment to accommodate different raw material thicknesses without machining new stop blocks.
Adjust the stroke of a conveyor sorting gate on the fly when switching between packaged box sizes, ensuring the diverter meets the new physical profile precisely.
Test multiple end positions for a pressing operation on an automated assembly line, tweaking the 5-15mm range to find the optimal engagement depth before finalizing the mechanical stop.
When sizing this 40mm bore actuator, note the 32mm bore yields 402.1N push and the 50mm bore yields 981.8N push at 0.5MPa, making this 628.3N model the right middle ground for medium force. If your extend position never varies, a fixed-stroke ACQ cylinder suffices. For this adjustable version, confirm your ordering essentials: 40mm bore, 15mm full stroke, 10mm window, male rod thread (-B), and whether you need the -S magnet for position sensing.
Quick checklist
It delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The usable extend range is 5-15mm, utilizing a 10mm adjustment window from the 15mm full stroke.
The external M12x1.25 threaded stop with lock nut limits how far the rod extends, shortening the stroke length only. The force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed NBR elastomer bumpers at both ends for deceleration, not adjustable air cushions.
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