
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X40-30SB 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 10mm up to the full 40mm directly on the machine. The retract stroke remains completely unaffected by this adjustment. A built-in piston magnet (-S) pairs seamlessly with reed or solid-state electronic switches for precise position sensing.
Because the internal piston area is unchanged, the output force equals that of a standard ACQ of the same bore. The male piston rod end (-B, M14x1.5) couples directly to your load, while fixed elastomer bumpers absorb impact at both ends. Operating pressure spans 0.15-1.0 MPa, and the standard PT1/8 port ensures straightforward pneumatic integration.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 40 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. |
| ×40 | 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 reach on CNC milling fixtures, allowing operators to accommodate varying raw material thicknesses without fabricating new stopper hardware.
Modify the folding flap engagement depth on packaging lines during product size changeovers, ensuring crisp seals on different box dimensions.
Establish trial end positions for metal bending operations, enabling fine-tuning of the metal sheet stop without disassembling the tooling setup.
When sizing this 32mm bore actuator, consider the neighbouring options: a 25mm bore yields 245.4N push at 0.5 MPa, while stepping up to a 40mm bore provides 628.3N push. If your application requires a fixed reach every cycle without any manual tuning, a standard ACQ cylinder will suffice. To order, confirm the 32mm bore, 40mm full stroke, 30mm adjustable window, the -S magnet requirement, and the -B male rod thread.
Quick checklist
It delivers 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 40mm with a 30mm adjustable window, giving a usable extend range of 10-40mm.
No, the external M12x1.25 threaded stop only changes the extend stroke length, not the piston area, so force remains identical to a standard ACQ. The retract stroke is unaffected, and fixed elastomer bumpers decelerate the load at both ends.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.