Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-100S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-100S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke175 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-100S
The AirTAC ACQJ140X175-100S is a double-acting, single-rod JIS compact cylinder engineered for big-bore applications up to 300mm stroke. It features an external M27x2.0 threaded stop with a lock nut that restricts the extend end position. You can fine-tune the usable extend stroke anywhere from 75mm up to the full 175mm directly on the machine, while the retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this size, yielding 7696.9N push and 7294.8N pull at 0.5 MPa. The unit incorporates fixed NBR elastomer bumpers at each end rather than adjustable air cushions. Equipped with a piston magnet (-S), it supports both reed and electronic solid-state switches in the built-in grooves. Note that a plain cylinder will not hold its load upon air loss; utilize an external rod lock or pilot-operated check valve for fail-safe holding.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-100S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-100S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 175 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 ACQJ140X175-100S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×175 | 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 ACQJ140X175-100S Is Used
Heavy Press Tonnage Setup
Dial in the exact 75 to 175mm extend reach on heavy metal stamping presses during initial tooling setup without machining custom spacers.
Automated Pallet Changeover
Modify the extend stop on large CNC pallet changers to accommodate different fixture heights rapidly across product families.
Large Mold Clamping
Test and establish precise end positions for large mold closing operations, relying on the 1570 kgf max push force for secure holding.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-100S the Right Cylinder?
For lower force requirements, consider the 125mm bore offering 6135.9N push at 0.5 MPa, or step up to the 160mm bore for 10053.1N push. If your end-position never varies, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable unit correctly, confirm the 140mm bore, 175mm full stroke, 100mm adjustment window, the -S magnet option, and the default female M22x2.5 rod-end thread with PT3/8 ports.
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 ACQJ140X175-100S FAQ
This model provides 7696.9N push and 7294.8N pull at 0.5 MPa, 10775.7N push at 0.7 MPa, and a maximum push of 1570 kgf at 1.0 MPa. The full stroke is 175mm with a 100mm adjustment window, allowing a usable extend range of 75 to 175mm.
An external M27x2.0 threaded stop and lock nut mechanically limits the extend distance, changing only the stroke length, not the force. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not adjustable air cushions. The built-in magnet (-S) works with reed or solid-state 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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