Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB
The ACQJ32X300-75SB is a double-acting JIS compact cylinder built for applications requiring a long 300mm stroke with on-machine extend tuning. An external M12x1.25 threaded stop and lock nut lets you fine-tune the forward end position across a 225-300mm usable range without swapping parts. The retract stroke remains completely unaffected. This made-to-order variant exceeds the standard 100mm maximum for this bore size.
Because the adjuster only limits travel length, the piston area stays the same, meaning force output is identical to a standard ACQ. At 0.5 MPa it delivers 402.1N of push force and 301.6N of pull force. The unit includes a male M14x1.5 rod end for direct load coupling, a built-in piston magnet for position sensing, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 300 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB Is Used
Variable Height Press Lifts
Dial in the exact downward travel on assembly presses handling multiple product stacks, using the 225-300mm range to accommodate different material thicknesses instantly.
Quick Product Changeover Stops
Reposition the extend limit on packaging conveyors during format changes, saving setup time by turning the external stopper nut rather than replacing the whole actuator.
Prototype End Position Testing
Safely test new end-of-arm tooling trajectories on CNC tending machines by starting with a shorter extend stroke and gradually increasing it up to the full 300mm limit.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: a 25mm bore provides 245.4N push at 0.5 MPa, while stepping up to a 40mm bore yields 628.3N. This 32mm model hits a solid middle ground at 402.1N. If your equipment never requires end-position variance, a fixed-stroke ACQ cylinder will suffice and cost less. To order this adjustable version correctly, confirm the 32mm bore, 300mm full stroke, 75mm window, the S magnet option, and the B male rod thread. Note that for heavy loads at high speeds, the fixed bumper may require an external shock absorber.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB FAQ
This cylinder has a 300mm full stroke with a 75mm adjustable window, allowing the extend range to be set anywhere from 225mm to 300mm. It operates at 0.15-1.0 MPa and 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 retract stroke remains fixed at 300mm.
The external M12x1.25 threaded stop with a lock nut physically limits how far the rod extends, shortening the stroke without changing the piston area, so force remains identical to a standard ACQ. It relies on fixed NBR elastomer bumpers for deceleration rather than adjustable air cushions. The included S magnet works seamlessly with both reed and electronic solid-state switches for position detection.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.