Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke90 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30SB
The AirTAC ACQJ40X90-30SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You can fine-tune the end-of-stroke position on the machine, yielding a usable extend range of 60-90mm from the 90mm full stroke. The retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore. The adjuster only alters travel length.
This bore 40mm unit pushes 628.3N and pulls 527.8N at 0.5MPa. It incorporates a fixed elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The -S magnet enables compatibility with both reed and solid-state switches, while the -B male rod-end thread (M14x1.5) couples directly to your load. The adjuster itself uses an M12x1.25 thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ40X90-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | 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 ACQJ40X90-30SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC fixture during setup, shortening the extend stroke up to 30mm to accommodate varying part heights without swapping cylinders.
Packaging Line Diverters
Adjust the diverting arm end position on the fly for different carton widths, ensuring positive routing without re-engineering the conveyor frame.
Assembly Press Stops
Set precise press-in depths for bearing inserts during product changeover, tweaking the rod extension limit on the equipment instead of ordering new hard stops.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30SB the Right Cylinder?
If you need slightly less force, the bore 32 model provides 402.1N push at 0.5MPa, whereas stepping up to bore 50 yields 981.8N. If the exact 90mm extend position never varies, a fixed-stroke ACQ cylinder is sufficient. When ordering, confirm the 40mm bore, 90mm full stroke, 30mm adjuster window, plus the S magnet and B male rod options.
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 ACQJ40X90-30SB FAQ
At 0.5MPa it pushes 628.3N and pulls 527.8N; at 0.7MPa push is 879.6N. Maximum push is 128kgf at 1.0MPa. The full stroke is 90mm with a 30mm adjustable window, giving a usable extend range of 60-90mm.
No, the adjuster changes stroke length only, leaving piston area and force identical to a standard ACQ. Deceleration is handled by a fixed elastomer bumper at each end, not an adjustable air cushion. For high-energy loads, add an external shock absorber.
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1-Year Warranty
Covers non-human-caused product damage.
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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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