Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-20SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-20SB 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 ACQJ160X300-20SB
The ACQJ160X300-20SB is a double-acting, single-rod JIS compact cylinder engineered for heavy-duty big-bore applications up to 300 mm stroke. An external threaded stop with a lock nut limits the extend travel, yielding a usable extend range of 280-300 mm. The retract stroke remains completely unaffected by this adjustment. Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore.
This variant includes a male M36x1.5 piston rod end that couples directly to the load, alongside a built-in piston magnet (-S) compatible with reed or electronic solid-state switches. Operating at 0.15-1.0 MPa with a PT3/8 port, it relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. For high kinetic energy loads, adding an external shock absorber is advised.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-20SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-20SB |
|---|---|
| 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 ACQJ160X300-20SB
| 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 ACQJ160X300-20SB Is Used
Heavy Press Tonnage Tuning
Dial in the exact 280-300 mm extend position on a large metal-forming press during setup, avoiding the need to machine new spacer collars for varying material thicknesses.
Automated Assembly Line Changeover
Swiftly reposition the end stop for product family changeovers on automotive assembly rigs, utilizing the M36x1.5 male rod to drive heavy tooling plates.
Large Fixture Clamping Adjustment
Fine-tune clamping reach on substantial welding fixtures, leveraging the 2050 kgf max push capacity to secure bulky structural frames safely.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-20SB the Right Cylinder?
Selecting this 160 mm bore provides a massive 10053.1 N push force at 0.5 MPa. If your application requires slightly less thrust, stepping down to a 140 mm bore yields 7696.9 N push @0.5 MPa. A standard fixed-stroke ACQ cylinder is sufficient if your end-position never requires on-machine tweaking. Confirm your ordering essentials: 160 mm bore, 300 mm full stroke, 20 mm adjustment window, -S magnet, and -B male rod 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 ACQJ160X300-20SB FAQ
This 160 mm bore cylinder operates at 0.15-1.0 MPa with a PT3/8 port. The usable extend range is 280-300 mm (300 mm full stroke minus a 20 mm window). Force is identical to a standard ACQ: it pushes 10053.1 N and pulls 9424.8 N at 0.5 MPa, pushes 14074.3 N at 0.7 MPa, and has a maximum push of 2050 kgf at 1.0 MPa.
The external M36x2.0 threaded stop with a lock nut limits the extend travel without altering the piston area, meaning force remains unchanged. The retract stroke is unaffected. Deceleration relies on a fixed NBR elastomer bumper, not an adjustable air cushion. Note that a plain compact cylinder does not hold its load on air loss; for fail-safe load holding, install an external rod lock or pilot-operated check valve.
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