
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X150-10S is a double-acting JIS compact cylinder featuring a 40mm bore and a 150mm long-stroke design, exceeding the standard 100mm maximum for this bore size. An external threaded stop with a lock nut limits the extend end position, providing a usable extend range of 140 to 150mm. The retract stroke remains completely unaffected by this adjustment. Because the piston area stays the same, force output is identical to a standard ACQ, giving you 628.3N push at 0.5MPa.
This unit includes the -S magnet option for tracking with reed or solid-state sensors. It uses a PT1/8 port and a 16mm piston rod with an M8x1.25 female end. Deceleration relies on a fixed NBR elastomer bumper at each end rather than an adjustable air cushion. For fail-safe load holding during air loss, consider adding an external rod lock, as a plain cylinder drifts when unpressurized.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 150 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. |
| ×150 | 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 within the 140-150mm window on CNC machining fixtures without swapping cylinders during product changeovers.
Fine-tune the extend end stop on packaging lines to accommodate varying carton sizes, utilizing the fixed NBR bumper for end-of-stroke deceleration.
Establish optimal end positions on assembly equipment by adjusting the external M12x1.25 stopper nut, keeping the retract stroke constant.
Choosing this 40mm bore model gives 628.3N push and 527.8N pull at 0.5MPa (879.6N push at 0.7MPa, max 128kgf at 1.0MPa). If you need less force, the 32mm bore provides 402.1N push, while stepping up to a 50mm bore yields 981.8N push. A fixed-stroke ACQ suffices if your end position never requires shifting. When ordering, confirm the 40mm bore, 150mm full stroke, 10mm adjustment window, -S magnet, and female rod thread.
Quick checklist
This long-stroke cylinder has a 150mm full stroke with a 10mm adjustable window, yielding a usable extend range of 140-150mm. It provides 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 external M12x1.25 threaded stop with lock nut limits only the extend stroke length, meaning force remains identical to a standard ACQ. The retract stroke is unaffected. The cylinder uses fixed elastomer bumpers, not an adjustable cushion, and it will drift on air loss so an external rod lock is needed for fail-safe holding.
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