Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X300-100SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X300-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke300 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X300-100SB
The AirTAC ACQJ140X300-100SB represents the big-bore JIS compact series, bringing double-acting single-rod functionality with an external threaded stop and lock nut to precisely limit the EXTEND end position. Your usable extend travel spans 200 to 300 mm, achieved by shortening the full 300 mm stroke by up to the 100 mm window. The RETRACT movement remains completely unaffected. Because the piston area stays constant, the generated force is IDENTICAL to a standard ACQ of this size, yielding 7696.9 N push and 7294.8 N pull at 0.5 MPa.
This variant includes the -S magnet for compatibility with reed or electronic solid-state switches, plus the -B male piston rod end (M30x1.5) for direct load coupling. It features fixed NBR elastomer bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions. Operating pressure spans 0.15 to 1.0 MPa across a 30-500 mm/s speed range, with a PT3/8 port and an M27x2.0 external adjuster thread.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X300-100SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X300-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 300 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 ACQJ140X300-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | 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 ACQJ140X300-100SB Is Used
Heavy Press Changeovers
Adapt large metal-forming presses to new die heights by dialing the extend stop within the 200-300 mm window without machining new spacers.
Large Fixture Positioning
Set trial end positions on oversized welding fixtures, using the M27x2.0 adjuster to dial in the exact clamping depth on the fly.
Pallet Lift Stops
Regulate the raise height of heavy pallet lifts in packaging lines, accommodating various pallet sizes via the external lock nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X300-100SB the Right Cylinder?
When sizing this big-bore compact unit, consider the neighbouring bore 125 (6135.9 N push@0.5 MPa) for lighter loads, or bore 160 (10053.1 N push@0.5 MPa) if your 7696.9 N requirement grows. If your extend position never varies, a fixed-stroke ACQ of the same bore suffices. Confirm your ordering essentials: 140 mm bore, 300 mm full stroke, 100 mm 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 ACQJ140X300-100SB FAQ
The usable extend range is 200-300 mm (full 300 mm minus up to the 100 mm window). Force is identical to a standard ACQ: push is 7696.9 N and pull is 7294.8 N at 0.5 MPa, push is 10775.7 N at 0.7 MPa, and maximum push is 1570 kgf at 1.0 MPa.
An external threaded stop with a lock nut limits the extend stroke without changing the piston area, so force remains unchanged. The cylinder uses fixed elastomer bumpers, not adjustable air cushions. A plain ACQ-type does not hold its load on air loss; for a fail-safe hold, install an external rod lock or pilot-operated check valve.
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1-Year Warranty
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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