Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-30SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke100 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-30SB
The AirTAC ACQJ140X100-30SB is a double-acting, single-rod JIS compact cylinder from the big-bore range, featuring an external threaded stop with a lock nut that limits the EXTEND end position. You can fine-tune the usable extend travel from 70 mm up to the full 100 mm directly on the machine, while the RETRACT stroke remains unaffected. It includes a male M30x1.5 rod-end thread and a PT3/8 port.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 7696.9 N push at 0.5 MPa. The unit relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. Equipped with a piston magnet (-S), it supports both reed and electronic solid-state sensors, and operates reliably within the 0.15-1.0 MPa pressure range.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-30SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 100 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 ACQJ140X100-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×100 | 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 ACQJ140X100-30SB Is Used
Press Tonnage Setup
Dial in the exact 70 to 100 mm extend reach during heavy-press changeovers without machining new spacers or swapping cylinders.
Heavy Fixture Clamping
Adapt the clamping endpoint on large automotive welding fixtures to accommodate different multi-part assemblies rapidly.
Pallet Positioning
Fine-tune the lifting height on large conveyor stops to align oversized pallets perfectly for robotic pickup.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-30SB the Right Cylinder?
For applications requiring less thrust, the smaller bore 125 yields 6135.9 N push at 0.5 MPa, whereas the larger bore 160 provides 10053.1 N push. If your equipment always operates at the exact 100 mm extend distance without variation, a fixed-stroke ACQ cylinder is sufficient. When ordering this adjustable unit, verify the 140 mm bore, 100 mm full stroke, 30 mm adjuster window, the -S magnet for sensing, and the -B male M30x1.5 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 ACQJ140X100-30SB FAQ
It has a 140 mm bore, 100 mm full stroke, and a 30 mm adjustment window, giving a usable extend range of 70-100 mm. 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.
The external M27x2.0 threaded stop with a lock nut physically limits how far the rod extends, shortening the stroke from 100 mm down to 70 mm without changing the piston area, so force remains unchanged. The fixed elastomer bumper decelerates the load near the stroke end, and the -S magnet works with reed or solid-state sensors.
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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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