Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke100 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-30S
The AirTAC ACQJ125X100-30S is a double-acting, single-rod JIS compact cylinder from the big-bore range, featuring an external threaded stop with a lock nut to precisely limit the EXTEND end position. You can fine-tune the usable extend stroke anywhere from 70 mm up to the full 100 mm on the machine, while the RETRACT stroke remains completely unaffected. The adjuster mechanism features an M27x2.0 thread.
Because the internal piston area is unchanged, the output force is identical to a standard ACQ of this bore size, delivering 6135.9 N of push force at 0.5 MPa. This model includes a built-in piston magnet (-S) compatible with reed or electronic solid-state switches, and relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 ACQJ125X100-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | 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 ACQJ125X100-30S Is Used
Press Fixture Changeover
Allows operators to dial in the exact 70-100 mm extend position for varying material thicknesses during product changeovers without machining new spacer collars.
Heavy Assembly Station Stops
Provides a tunable hard stop for heavy automotive component assembly, ensuring precise end-positioning while maintaining the full 6135.9 N clamping force.
Palletizer End Positions
Enables quick on-site adjustments of the extend stroke to accommodate different pallet dimensions, utilizing the fixed elastomer bumper to absorb high kinetic energy.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-30S the Right Cylinder?
When sizing this big-bore 125 mm unit, consider the adjacent options: a 100 mm bore yields 3927.0 N push @0.5 MPa, while a 140 mm bore provides 7696.9 N push @0.5 MPa. If your machine setup never requires shifting the end position, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version correctly, confirm the 125 mm bore, the 100 mm full stroke, the 30 mm adjustment window, the -S magnet option, and the default female M22x2.5 rod-end 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 ACQJ125X100-30S FAQ
It delivers 6135.9 N push and 5733.8 N pull at 0.5 MPa, 8590.3 N push at 0.7 MPa, with a maximum push capacity of 1251 kgf at 1.0 MPa. The full stroke is 100 mm with a 30 mm adjustable window, giving a usable extend range of 70-100 mm. The port size is PT3/8, and the external adjuster thread is M27x2.0.
The external threaded stop with a lock nut physically limits how far the rod extends, shortening the stroke length only; it does not alter the piston area, so the output force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration, not adjustable air cushions. Note that a plain ACQ-type cylinder will not hold its load on air loss or a centered valve—the rod drifts—so an external rod lock or pilot-operated check valve is required for fail-safe load holding.
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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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