Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-75B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-75B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke90 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-75B
The AirTAC ACQJ32X90-75B is a double-acting JIS compact cylinder featuring a male-thread piston rod (M14x1.5) for direct load coupling. It utilizes an external threaded stop with a lock nut to limit the extend end position. You can tune the usable extend range from 15 mm up to the full 90 mm directly on the machine, while the retract stroke remains completely unaffected.
Because the piston area stays constant, the output force is identical to a standard ACQ of this bore, delivering a push of 402.1 N at 0.5 MPa. The cylinder body integrates sensor grooves for adding reed or solid-state switches, though this specific configuration ships without a magnet. Deceleration relies on a fixed NBR elastomer bumper at each end, rather than an adjustable air cushion.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-75B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-75B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 90 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 ACQJ32X90-75B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 ACQJ32X90-75B Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on CNC fixtures during part changeovers, utilizing the 15-90 mm extend window to accommodate varying raw material thicknesses without swapping hardware.
Carton Sealing Stops
Adjust the extend end position on packaging lines to match different box dimensions, ensuring precise flap folding and sealing contact while the M14x1.5 male rod thread drives the mechanism.
Assembly Press Positioning
Set trial end positions for pressing bearings or pins in assembly machinery, allowing operators to tweak the 15 mm minimum extension depth on-site to prevent overtravel and workpiece damage.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-75B the Right Cylinder?
When sizing this unit, consider the 32 mm bore providing 402.1 N push at 0.5 MPa; dropping to a 25 mm bore reduces push to 245.4 N, whereas stepping up to a 40 mm bore increases push to 628.3 N. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable variant correctly, confirm the 32 mm bore, 90 mm full stroke, 75 mm window, the male rod thread (-B), and note that no magnet (-S) is included.
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 ACQJ32X90-75B FAQ
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 full stroke is 90 mm with a 75 mm adjustable window, yielding a usable extend range of 15-90 mm. It features a 16 mm rod, PT1/8 port, M14x1.5 male rod thread, and an M12x1.25 adjuster thread.
No, the external threaded stop alters the extend length only, keeping the force identical to a standard ACQ because the piston area is unchanged. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. Note that this model lacks a sensor magnet and the plain design will not hold a load if air pressure is lost.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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