Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-75 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-75
The ACQJ40X75-75 is a double-acting JIS compact cylinder with a 75mm full stroke and a 75mm adjustable extend window. An external M12x1.25 threaded stop and lock nut let you set the extend end position anywhere from 0 to 75mm directly on your machinery. The retract stroke remains completely unaffected by this adjustment.
Because the 40mm piston area is unchanged, output force is identical to a standard ACQ of this bore. You get 628.3N push and 527.8N pull at 0.5MPa. The body features fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, plus magnetic-switch grooves, though this specific SKU ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-75 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 (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 ACQJ40X75-75
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | 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 ACQJ40X75-75 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining center during part changeovers without machining new spacer blocks.
Carton Forming Arms
Adjust the tucking arm extension on a packaging line to accommodate varying box depths on the fly.
Assembly Press Positions
Fine-tune the pressing depth for inserting bearings on an assembly line to test trial end positions safely.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-75 the Right Cylinder?
Choose this 40mm bore if you need 628.3N push at 0.5MPa with variable extend positioning. Stepping down to a 32mm bore yields 402.1N push, while moving up to a 50mm bore provides 981.8N push. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder will suffice. When ordering, confirm the 75mm full stroke, 75mm window, female M8x1.25 rod-end thread, and PT1/8 port. Note that a plain cylinder drifts on air loss; add an external rod lock for fail-safe load holding.
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 ACQJ40X75-75 FAQ
The usable extend range is 0-75mm. It delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128 kgf at 1.0 MPa. The 75mm adjustment window alters stroke length only, so force remains identical to a standard ACQ.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke; the retract stroke is unaffected. The cylinder uses fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. The body has sensor grooves, but this model ships without a magnet, so add an external rod lock if you need fail-safe load holding.
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 ACQJ40X75-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.