Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke200 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20SB
The AirTAC ACQJ140X200-20SB is a double-acting JIS compact cylinder from the big-bore range, featuring a 140mm bore and a 200mm full stroke. An external threaded stop with a lock nut limits the EXTEND end position, providing a usable extend range of 180-200mm (shortening the stroke by up to 20mm) while the RETRACT stroke remains unaffected. The adjuster utilizes an M27x2.0 thread.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this size, yielding 7696.9N push and 7294.8N pull at 0.5MPa. The unit includes a male-thread piston rod end (M30x1.5) for direct load coupling, a PT3/8 port, and a built-in piston magnet (-S) compatible with reed or solid-state switches. Fixed NBR elastomer bumpers absorb impact at stroke ends.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 200 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 ACQJ140X200-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×200 | 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 ACQJ140X200-20SB Is Used
Heavy Press Setup Tuning
Dial in the exact 180-200mm extend reach during heavy press setup, allowing operators to tweak the end position without machining new spacers or changing the cylinder.
Automated Line Changeover
Adapt end-stops rapidly on a large automated assembly line when switching product profiles, using the external M27x2.0 adjuster to meet new part dimensions quickly.
Large Fixture Positioning
Establish trial end positions on massive welding fixtures, fine-tuning the extend reach to align heavy components precisely before finalizing the mechanical stops.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20SB the Right Cylinder?
For 0.5MPa push requirements, the 125mm bore yields 6135.9N, while the 160mm bore provides 10053.1N, framing this 140mm unit at 7696.9N as the optimal mid-point. If exact 200mm end-position repeatability is fixed and never varies, a standard ACQ cylinder suffices. When ordering, verify the 140mm bore, 200mm full stroke, 20mm adjustable 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 ACQJ140X200-20SB FAQ
At 0.5MPa it provides 7696.9N push and 7294.8N pull, 10775.7N push at 0.7MPa, and a maximum push of 1570kgf at 1.0MPa. The full stroke is 200mm with a 20mm adjustable window, giving a usable extend range of 180-200mm.
No, the adjuster changes only the extend stroke length, not the piston area, so force remains identical to a standard ACQ. Impact at the stroke ends is handled by fixed NBR elastomer bumpers, and the -S magnet allows tracking with reed or solid-state switches.
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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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