
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X175-30B is a double-acting, single-rod JIS compact cylinder built for adjustable extend strokes. Because the 175mm stroke exceeds the standard 100mm maximum for a 32mm bore, this unit is configured as a long-stroke, made-to-order variant. An external threaded stop with a lock nut lets you limit the rod extension, providing a usable extend range of 145 to 175mm. The retract movement remains completely unaffected by this adjustment.
Piston area stays constant, so output force is identical to a standard ACQ of the same bore: 402.1N push and 301.6N pull at 0.5MPa. The body features fixed elastomer bumpers at both ends for end-of-travel deceleration rather than adjustable air cushions. This specific configuration includes a male M14x1.5 piston rod end for direct load coupling, and while the body retains magnetic-switch grooves, it ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 175 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. |
| ×175 | 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 145 to 175mm clamp extension on machining fixtures without machining custom spacers or swapping cylinders when raw part heights vary.
Adjust the extend stop on a packaging line diverter to handle different carton widths on the fly, ensuring precise routing without reprogramming controls.
Establish the exact end-of-stroke contact point on a laboratory press by fine-tuning the external stop, preventing over-travel damage during trial assemblies.
If your application only needs a 145mm extend distance, a fixed-stroke ACQ32X145 would suffice and avoids special-order wait times. For higher force requirements, stepping up to the 40mm bore yields 628.3N push at 0.5MPa; if 402.1N is too much, dropping to the 25mm bore provides 245.4N. When ordering this model, verify the 32mm bore, 175mm full stroke, 30mm adjustable window, the male rod thread (-B), and confirm that no internal magnet (-S) is required since this unit ships without one.
Quick checklist
The usable extend range is 145-175mm (175mm full stroke minus the 30mm window). It delivers 402.1N push and 301.6N pull @0.5MPa, 562.9N push @0.7MPa, and a maximum push of 82 kgf @1.0MPa. The port size is PT1/8, and the external adjuster thread is M12x1.25.
The external threaded stop with a lock nut limits only the extend length, meaning force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed elastomer bumpers for deceleration, not an adjustable air cushion. Note that this model ships without a magnet and does not hold the load on air loss; for fail-safe holding, use an external rod lock.
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Standard models usually ship in 3-4 days.
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