
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X100-10S is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You get a usable extend range of 90-100mm, letting you shorten the full 100mm stroke by up to 10mm directly on the machine. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore, delivering 628.3N push at 0.5MPa. It features a 16mm rod, PT1/8 porting, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration. The built-in magnet (-S) supports both reed and solid-state sensors.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 100 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. |
| ×100 | 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 90-100mm extend position on a CNC machining fixture during part-changeover without machining new stop collars.
Tune the extend end stop on the fly when packaging different box sizes, ensuring precise forming pressure without changing cylinders.
Set trial end positions on an electronic assembly press to test insertion depths before locking down the external adjuster nut.
For lower push requirements, the 32mm bore yields 402.1N at 0.5MPa, while stepping up to the 50mm bore provides 981.8N. If your extend end position never varies, a fixed-stroke ACQ cylinder is sufficient. When ordering this adjustable model, confirm the 40mm bore, 100mm full stroke, 10mm window, S magnet option, and the default female M8x1.25 rod-end thread.
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 full stroke is 100mm with a 10mm adjustable window, giving a usable extend range of 90-100mm.
An external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke length without changing the piston area, so force remains identical to a standard ACQ. Fixed elastomer bumpers handle deceleration at the stroke ends.
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