
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-100 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 ACQJ40X100-100 is a double-acting, single-rod JIS compact cylinder with an external threaded stop that limits the extend end position. A lock nut on the rod-end side lets you fine-tune the usable extend range from 0 mm up to the full 100 mm stroke directly on your equipment, avoiding the need for new parts during setup. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force stays identical to a standard ACQ of the same bore, delivering 628.3 N push and 527.8 N pull at 0.5 MPa. The unit features a 16 mm piston rod, PT1/8 porting, and fixed NBR elastomer bumpers at both ends for end-of-travel deceleration. The body includes standard magnetic-switch grooves, though this specific configuration ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-100 |
|---|---|
| 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 extend end position on a CNC machining fixture without swapping cylinders when raw material thickness varies slightly.
Quickly readjust the extend stroke on packaging line guide rails to accommodate different carton widths during product changeover.
Test and establish trial extend endpoints on new automated assembly machinery before locking down final mechanical dimensions.
This 40 mm bore option provides 628.3 N push at 0.5 MPa. If you need less force, the 32 mm bore yields 402.1 N push, while stepping up to the 50 mm bore provides 981.8 N push for heavier demands. Choose this adjustable model if your fixture requires variable end positions; a fixed-stroke ACQ suffices for standard repetitive movements. When ordering, verify the 100 mm full stroke, the 100 mm adjustment window, the female M8x1.25 rod-end thread, and whether you need the -S magnet option for sensor feedback.
Quick checklist
It delivers 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. The full stroke is 100 mm, and with the 100 mm adjustment window, the usable extend range is 0-100 mm. The retract stroke is unaffected.
An external threaded stop with a lock nut limits the extend stroke, allowing you to shorten the travel without changing parts. The adjuster features an M12x1.25 thread. Because the piston area remains the same, the force is identical to a standard ACQ; the adjuster only changes the stroke length. Fixed elastomer bumpers handle deceleration at both ends.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
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