Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X30-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X30-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 30mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke30 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X30-30S
The AirTAC ACQJ140X30-30S is a JIS compact, double-acting single-rod cylinder featuring an external extend stop. A threaded rod with a lock nut limits forward travel, allowing you to set the usable extend range from 0 to 30 mm directly on your equipment. The return stroke remains fixed at 30 mm. As a big-bore compact unit, it supports up to 300 mm of standard travel.
Because the internal piston area is unchanged, output force equals a standard ACQ of identical bore. You get 7696.9 N push and 7294.8 N pull at 0.5 MPa. The -S magnet enables tracking by reed or solid-state sensors, while fixed NBR bumpers absorb end-of-travel kinetic energy across the -20 to +70 C operating range.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X30-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X30-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 30 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 ACQJ140X30-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×30 | 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 ACQJ140X30-30S Is Used
Heavy Press Tonnage Setup
Dial in the exact 0-30 mm forward clamp position on large metal-forming presses during initial tool setup without machining custom spacers.
Automotive Line Changeover
Adapt end-stops rapidly on robotic welding fixtures when switching between vehicle chassis models on the same production line.
Palletizer Stroke Tuning
Adjust the extend endpoint on the fly to accommodate varying pallet heights or oversized crate dimensions in high-throughput logistics.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X30-30S the Right Cylinder?
For lower force needs, stepping down to a bore 100 unit yields 3927.0 N push @0.5 MPa, whereas a bore 160 provides 10053.1 N. If your machine never requires altering the forward endpoint, a fixed-stroke ACQ cylinder is sufficient. When ordering this adjustable variant, verify the 140 mm bore, 30 mm total travel, 30 mm window, the -S magnet, and the M22x2.5 female 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 ACQJ140X30-30S FAQ
It delivers 7696.9 N push and 7294.8 N pull @0.5 MPa, 10775.7 N push @0.7 MPa, and 1570 kgf max push @1.0 MPa. The usable extend range is 0-30 mm (from a 30 mm full stroke minus the 30 mm window). It features a 32 mm rod, PT3/8 port, M22x2.5 female rod-end, and an M27x2.0 adjuster thread.
No, the adjuster changes forward travel length only; force remains identical to a standard ACQ because piston area is unaffected. Deceleration relies on fixed NBR elastomer bumpers rather than adjustable air cushions. For heavy loads or high speeds, add an external shock absorber. Note that on air loss, a standard cylinder drifts; use an external rod lock for fail-safe holding.
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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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