Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke40 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30S
The AirTAC ACQJ160X40-30S is a double-acting, single-rod JIS compact cylinder engineered for big-bore applications up to 300 mm standard stroke. An external threaded stop with a lock nut limits the extend end position, providing a usable extend range of 10 to 40 mm. Because the piston area remains unchanged, the output force is identical to a standard ACQ of this bore, delivering 10053.1 N of push force at 0.5 MPa.
This model features a 40 mm piston rod, PT3/8 ports, and an M36x2.0 adjuster thread. The retract stroke remains unaffected by the adjuster. Equipped with an -S magnet, it operates reliably with reed or solid-state switches in magnetic sensor grooves. Fixed NBR elastomer bumpers at each end decelerate the load, though external shock absorbers are recommended for high-energy cycles.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 40 mm |
| Adjuster thread | M36×2.0 |
| 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 | M24×3.0 (F) / M36×1.5 (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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 ACQJ160X40-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 ACQJ160X40-30S Is Used
Heavy Press Tonnage Tuning
Dial in the exact extend end position during heavy press setup changes, allowing operators to shorten the stroke by up to 30 mm to accommodate varying material thicknesses without swapping cylinders.
Automotive Welding Fixtures
Adjust the extend stop on the production line to modify electrode approach distances for different automotive subframes, ensuring precise clamping without replacing hardware.
Palletizing End Stops
Fine-tune the extend reach on large packaging equipment to handle varying pallet dimensions, relying on the 2050 kgf max push force to move heavy loads securely.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30S the Right Cylinder?
When sizing this big-bore 160 mm unit, stepping down to a 140 mm bore yields 7696.9 N push at 0.5 MPa, while no larger standard ACQ bore exists in this range. If your machine design requires a fixed 40 mm extend and 40 mm retract without any on-site length modification, a standard ACQ160X40 cylinder is sufficient. For the ACQJ160X40-30S, confirm your ordering essentials: 160 mm bore, 40 mm full stroke, 30 mm adjustable window, the -S magnet for sensing, and the default female M24x3.0 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 ACQJ160X40-30S FAQ
The usable extend range is 10 to 40 mm, achieved by subtracting the 30 mm window from the 40 mm full stroke. The force is identical to a standard ACQ of this bore: 10053.1 N push and 9424.8 N pull at 0.5 MPa, 14074.3 N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa.
The external M36x2.0 threaded stop with a lock nut limits only the extend stroke length, leaving the retract stroke unaffected. Because the piston area is unchanged, force is not reduced. Fixed NBR elastomer bumpers decelerate the load at stroke ends, but the cylinder does not hold its load on air loss; for fail-safe holding, use an external rod lock or pilot-operated check valve.
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Related AirTAC ACQJ Compact Cylinders
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