Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB
The AirTAC ACQJ140X75-40SB is a double-acting JIS compact cylinder featuring a big-bore 140mm body and an external stroke adjuster. A threaded stop with a lock nut restricts the extend end position, yielding a usable forward travel of 35-75mm from the 75mm full stroke, while the retract distance remains unaffected. Because the piston area stays constant, output force equals a standard ACQ of this bore.
This SB configuration includes a male M30x1.5 piston rod end for direct coupling and a built-in magnet for position sensing. It pushes 7696.9N and pulls 7294.8N at 0.5MPa, utilizing a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 75 mm |
| Adjuster thread | M27×2.0 |
| Port size | PT3/8 |
| 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 | M22×2.5 (F) / M30×1.5 (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 (Ø140mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 7697 N | 7295 N |
| 0.7 MPa | 10776 N | — |
| Max (@1.0 MPa) | 1570 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB Is Used
Press Tooling Setup
Dial in the exact 35-75mm extend position during press tooling setup without machining custom spacers.
Heavy Press Changeover
Adapt a heavy-duty forming press for a new product family by turning the external M27x2.0 stopper nut.
Pallet Positioning
Vary the end stop on a large pallet handling fixture to accommodate different package heights on the fly.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB the Right Cylinder?
Selecting this 140mm bore provides 7696.9N push force at 0.5MPa; dropping to a 125mm bore yields 6135.9N, whereas stepping up to 160mm offers 10053.1N. If your setup never requires altering the forward end position, a fixed-stroke ACQ cylinder suffices. When ordering, confirm the 140mm bore, 75mm full stroke, 40mm adjustment window, the S magnet option, and the 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ140X75-40SB FAQ
It delivers 7696.9N push and 7294.8N pull at 0.5MPa, 10775.7N push at 0.7MPa, and a maximum push of 1570kgf at 1.0MPa. The 75mm full stroke has a 40mm window, allowing an adjustable extend range of 35-75mm.
An external M27x2.0 threaded stop limits the extend length without altering the piston area, so force stays identical to a standard ACQ. Fixed NBR elastomer bumpers absorb impact at both ends; for high-energy loads, add an external shock absorber. The S magnet supports reed or solid-state switches.
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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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