Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-40S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke300 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-40S
The ACQJ160X300-40S is a double-acting, single-rod JIS compact cylinder engineered for big-bore heavy-duty tasks. It features an external threaded stop with a lock nut that restricts the EXTEND end position. You can fine-tune the usable extend stroke anywhere from 260mm up to the full 300mm without swapping parts. The RETRACT stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, the output force is identical to a standard ACQ of this bore. At 0.5 MPa, the push force is 10053.1 N and the pull force is 9424.8 N. The unit incorporates a fixed NBR elastomer bumper at each end for deceleration and includes a built-in piston magnet for position sensing.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-40S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 300 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 ACQJ160X300-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×300 | 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 ACQJ160X300-40S Is Used
Press Tonnage Calibration
Dial in the exact extend stop during press setup to test material deflection or calibrate tonnage without machining new spacer blocks.
Heavy Fixture Changeover
Adapt a large machining station for different product heights by rotating the external stop nut to shift the 260-300mm end position.
Large Mold Positioning
Establish trial end positions for heavy molds on an injection machine, tweaking the extend reach on-site until the mold seats perfectly.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-40S the Right Cylinder?
For lower force needs, stepping down to a Ø140 bore provides 7696.9 N push at 0.5 MPa, while this Ø160 model delivers 10053.1 N push. If your application never requires end-position tuning, a fixed-stroke ACQ160 cylinder will suffice. When ordering this adjustable variant, confirm the 300mm full stroke, the 40mm window, the -S magnet option, 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 ACQJ160X300-40S FAQ
It delivers 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 full stroke is 300mm, and the adjustable window of 40mm allows a usable extend range of 260-300mm.
The external M36x2.0 threaded stop with lock nut limits only the extend length, leaving retract stroke and output force unchanged. Deceleration relies on a fixed NBR elastomer bumper at each end; it is not an adjustable air cushion. Note that a plain cylinder does not hold loads on air loss, so an external rod lock is needed for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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