Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40SB
The AirTAC ACQJ32X75-40SB is a double-acting JIS compact cylinder with a 32mm bore and a 75mm full stroke. It features an external threaded stop with a lock nut on the rod-end side, allowing you to fine-tune the extend end position directly on the machine without swapping parts. The -40mm window means the usable extend range runs from 35mm up to 75mm, while the retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 402.1N push at 0.5MPa. This SB configuration includes a male M14x1.5 piston rod end for direct load coupling and a built-in magnet (-S) for position sensing. The unit uses a PT1/8 port, a fixed NBR elastomer bumper at each end, and an M12x1.25 adjuster thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 75 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 ACQJ32X75-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 ACQJ32X75-40SB Is Used
Machining Fixture Clamping
Dial in the exact clamping extension on a CNC fixture during product-changeover without machining custom spacers or buying new actuators.
Carton Sealing Stops
Adjust the pressing depth of a sealing head on a packaging line to accommodate various box heights, using the external stop to set the precise end position.
Assembly Press Trial
Set trial end positions for pressing bearings into housings, allowing operators to tweak the 35-75mm extend range on the machine until the optimal insertion depth is found.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40SB the Right Cylinder?
When sizing this actuator, stepping down to a 25mm bore yields 245.4N push at 0.5MPa, whereas stepping up to a 40mm bore provides 628.3N. Choose this 32mm bore if your application requires roughly 400N of push force and on-the-fly stroke adjustment. If the end position never varies, a fixed-stroke ACQ cylinder is simpler and suffices. Confirm your ordering essentials: 32mm bore, 75mm full stroke, 40mm window, -S magnet, and -B male rod thread.
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 ACQJ32X75-40SB FAQ
It delivers 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The full stroke is 75mm, but the external stop allows you to shorten the extend stroke by up to 40mm, giving a usable extend range of 35-75mm.
No, the adjuster only limits how far the rod extends, so the force remains identical to a standard ACQ. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. The -S magnet works with reed or electronic solid-state switches for position feedback.
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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
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