
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X60-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 60mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X60-30B 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 stroke anywhere from 30 mm up to the full 60 mm on your machinery without swapping parts, while the retract stroke remains completely unaffected. It incorporates a male M14x1.5 piston rod end (option B) that couples directly to your load.
Because the adjuster alters only the travel length and not the piston area, the output force remains identical to a standard ACQ of this bore, delivering 628.3 N of push force at 0.5 MPa. The 16 mm rod is driven by PT1/8 ports, and the body utilizes fixed elastomer NBR bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions. The integrated magnetic-switch grooves allow for position sensing, though this specific configuration ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X60-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 60 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. |
| ×60 | 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 force on a CNC fixture by setting the extend stop between 30 and 60 mm to accommodate varying raw material thicknesses without reprogramming the machine.
Rapidly adapt a packaging line diverter by turning the external M12x1.25 adjuster to meet new carton dimensions, ensuring precise end positions during product format transitions.
Safely test engagement depths on an automated assembly press by starting at a shorter 30 mm extend stroke and gradually increasing the travel until the optimal pressing point is found.
When sizing this 40 mm bore actuator, dropping down to a 32 mm bore reduces the push force to 402.1 N at 0.5 MPa, whereas stepping up to a 50 mm bore increases it to 981.8 N. If your machinery requires a fixed 60 mm extend position every cycle without any on-machine tuning latitude, a standard ACQ40X60 cylinder will suffice. To order this adjustable variant correctly, confirm the 40 mm bore, the 60 mm full stroke, the 30 mm adjustment window, the male M14x1.5 rod thread, and note that the magnet option is omitted here.
Quick checklist
The usable extend range is 30 to 60 mm (a 60 mm full stroke minus up to a 30 mm window). It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke without changing the piston area, so the force remains identical to a standard ACQ. Deceleration relies on fixed elastomer bumpers, and since this model lacks a -S magnet, you must add one separately if you need electronic or reed switch sensing.
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