Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30 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 ACQJ40X90-30
The AirTAC ACQJ40X90-30 is a double-acting, single-rod 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 60mm up to the full 90mm directly on the machine, while the retract stroke remains completely unaffected. The adjuster only changes the stroke length, meaning the output force stays identical to a standard ACQ of the same 40mm bore.
This model delivers 628.3N of push force and 527.8N of pull force at 0.5MPa, rising to 879.6N push at 0.7MPa, with a maximum push capacity of 128kgf at 1.0MPa. It incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body features integrated magnetic-switch grooves, though this specific configuration ships without a magnet. It uses a PT1/8 port, a 16mm piston rod, and a female M8x1.25 rod-end thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30 |
|---|---|
| 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 ACQJ40X90-30
| 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 ACQJ40X90-30 Is Used
Product Changeover Stops
Set precise extend endpoints for machining fixtures during rapid product family changeovers on automated lathes.
Variable Transfer Positions
Dial in the exact pusher distance on packaging lines to handle different carton widths without swapping hardware.
Trial End Positions
Test and establish optimal pressing or clamping depths on assembly rigs before finalizing a fixed mechanical stop.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-30 the Right Cylinder?
If you need less push force, the 32mm bore provides 402.1N at 0.5MPa, or for heavier loads, the 50mm bore yields 981.8N at 0.5MPa. If your extend position never varies, a fixed-stroke ACQ cylinder is sufficient. When ordering this adjustable version, confirm the 40mm bore, 90mm full stroke, 30mm adjustment window, female rod thread, and whether you need the S magnet option for reed or solid-state sensors.
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 ACQJ40X90-30 FAQ
The usable extend range is 60-90mm (90mm full stroke minus the 30mm window), while the retract stroke remains unaffected. It delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The bore is 40mm, the port is PT1/8, and the external adjuster thread is M12x1.25.
No, the external threaded stop only limits how far the rod extends, so the piston area and force remain identical to a standard ACQ. The cylinder uses a fixed elastomer bumper for deceleration rather than an adjustable cushion. Note that this model ships without a sensor magnet, though the body retains switch grooves for adding reed or solid-state sensors if needed.
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 ACQJ40X90-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.