Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-75S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-75S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke100 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-75S
The AirTAC ACQJ140X100-75S is a double-acting JIS compact cylinder featuring a big-bore 140mm piston and an external extend stop. A threaded rod with a lock nut lets you set the forward end position exactly where needed, providing a usable forward travel range of 25 to 100mm. The return stroke remains at the full 100mm. Because the internal piston area stays constant, output force is identical to a standard ACQ of this size.
This large variant delivers 7696.9N push and 7294.8N pull at 0.5MPa. It uses a fixed NBR elastomer bumper at each end for end-of-travel deceleration rather than an adjustable air cushion. The integrated -S magnet supports both reed and solid-state sensors via the built-in grooves, while the PT3/8 ports and M27x2.0 adjuster thread handle heavy-duty pneumatic flow and rigidity up to 300mm standard stroke limits.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-75S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-75S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 100 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 ACQJ140X100-75S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×100 | 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 ACQJ140X100-75S Is Used
Press Tooling Changeover
Adapt heavy-duty forming presses to new material thicknesses by dialing in the forward stop rather than machining custom spacer blocks.
Large Fixture Calibration
Dial in exact clamping reach on multi-model automotive assembly lines during product changeover without swapping out the entire cylinder body.
Bending Machine Trials
Establish precise metal forming end positions on the factory floor, tweaking the 25 to 100mm travel window on-site to perfect the bend angle.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-75S the Right Cylinder?
When sizing this big-bore unit, compare its 7696.9N push at 0.5MPa against the smaller bore 125 (6135.9N) or the larger bore 160 (10053.1N). If your machine never requires varying the forward end position, a fixed-stroke ACQ will suffice and simplifies setup. To order, confirm the 140mm bore, 100mm total travel, 75mm shortening window, the -S magnet option, and the default female M22x2.5 rod-end 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 ACQJ140X100-75S FAQ
It provides 7696.9N push and 7294.8N pull at 0.5MPa, 10775.7N push at 0.7MPa, and a maximum push of 1570 kgf at 1.0MPa. The forward travel can be adjusted from 25mm up to the full 100mm using the 75mm window, while the retract stroke remains unaffected.
No, the external M27x2.0 stop only limits how far the rod extends; the piston area is unchanged so force matches a standard ACQ. Deceleration relies on a fixed elastomer bumper, meaning there is no adjustable air cushion, and the -S magnet works with reed or electronic switches.
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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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