Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-30SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-30SB
The ACQJ160X75-30SB is a double-acting JIS compact cylinder featuring a 160mm bore and an external threaded stop with a lock nut to regulate the extend end position. You can fine-tune the usable outward travel anywhere from 45mm up to the full 75mm, while the retract stroke remains completely unaffected. This big-bore unit accommodates standard strokes up to 300mm and operates reliably between 0.15 and 1.0 MPa.
Because the adjuster solely limits travel length without altering piston area, output force stays identical to a standard ACQ of this size, generating 10053.1N of push at 0.5 MPa. The unit includes a male M36x1.5 piston rod end for direct load coupling, a PT3/8 port, and a built-in magnet (-S) compatible with reed or solid-state electronic switches. Fixed NBR elastomer bumpers absorb impact at both ends rather than relying on adjustable air cushions.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-30SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 75 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 ACQJ160X75-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×75 | 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 ACQJ160X75-30SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 45 to 75mm extension distance on massive pneumatic presses without machining new spacer blocks during initial equipment commissioning.
Automotive Welding Changeover
Rapidly adapt robot welding clamp arms for different vehicle body panels by externally repositioning the rod-end stop lock nut on the fly.
Large Fixture Positioning
Securely locate heavy machining fixtures by testing multiple extend end positions directly on the machine tool to find optimal clamping depth.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-30SB the Right Cylinder?
When sizing this model, dropping to a 140mm bore lowers the 0.5 MPa push to 7696.9N, whereas stepping up is not possible as 160mm is the largest available option. If your application requires a stationary end position and never needs on-the-fly stroke shortening, a fixed-stroke ACQ cylinder will suffice. To order this adjustable variant correctly, confirm the 160mm bore, 75mm full stroke, 30mm adjustment window, along with the -S magnet and -B male rod thread options.
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 ACQJ160X75-30SB FAQ
The usable extend range is 45-75mm (75mm full stroke minus up to 30mm). It delivers 10053.1N push and 9424.8N pull at 0.5 MPa, 14074.3N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The retract stroke remains unaffected by the adjustment.
No, the adjuster changes stroke length only, leaving force identical to a standard ACQ of the same bore. Deceleration is handled by fixed NBR elastomer bumpers at each end, not adjustable air cushions. For high-energy loads, add external shock absorbers. Note that a plain ACQ-type cylinder will not hold its load on air loss; use an external rod lock for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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