
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X100-75 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X100-75 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You can fine-tune the usable extend range from 25 mm up to the full 100 mm directly on your equipment, while the retract stroke remains completely unaffected. The adjuster mechanism utilizes an M12x1.25 thread for precise positioning.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 402.1 N of push force at 0.5 MPa. The unit relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. The body incorporates magnetic-switch grooves, though this specific configuration ships without a magnet. It operates efficiently at speeds between 30 and 500 mm/s, utilizing a PT1/8 port and a 16 mm piston rod.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X100-75 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 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 | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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. |
|---|---|
| 32 | 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 25 to 100 mm extend position for varying thicknesses on a machining fixture without swapping mechanical spacers.
Quickly reposition the extend end stop on a packaging line conveyor when transitioning between different carton sizes.
Safely test and set the precise extend endpoint on an assembly press during initial prototype runs before locking the nut.
When sizing this 32 mm bore actuator, stepping down to a 25 mm bore yields 245.4 N push at 0.5 MPa, whereas stepping up to a 40 mm bore provides 628.3 N. If your application never requires stroke length changes, a fixed-stroke ACQ cylinder is simpler and sufficient. To order this adjustable version correctly, confirm the 32 mm bore, 100 mm full stroke, 75 mm window, female rod-end thread M8x1.25, and whether you require the -S magnet option for sensor detection.
Quick checklist
The usable extend range is 25-100 mm (100 mm full stroke minus a 75 mm window). It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa.
The external M12x1.25 threaded stop only changes the extend stroke length; it does not alter piston area, so force remains identical to a standard ACQ. Deceleration is handled by a fixed elastomer bumper at each end, not an adjustable air cushion. This model ships without a magnet, though the body retains sensor grooves for adding reed or solid-state switches.
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Standard models usually ship in 3-4 days.
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