Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke175 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB
The AirTAC ACQJ125X175-100SB is a double-acting JIS compact cylinder from the big-bore range, featuring an external threaded stop and lock nut that limits the extend end position. With a full stroke of 175 mm and a 100 mm adjustment window, you can fine-tune the usable extend range down to 75 mm directly on the machine without swapping parts. The retract movement remains completely unaffected.
Because the piston area stays the same, force output is identical to a standard ACQ of this bore, yielding a push of 6135.9 N at 0.5 MPa. This variant includes a male piston rod end (M30x1.5) for direct load coupling and a built-in magnet (-S) compatible with reed or electronic solid-state switches. Deceleration relies on a fixed NBR elastomer bumper at each end, not an adjustable air cushion.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 175 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 ACQJ125X175-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 ACQJ125X175-100SB Is Used
Heavy Press Tonnage Setup
Dialing in the exact extend position on a multi-ton metalforming press during initial tool setup, preventing over-travel damage.
Pallet Changeover Stops
Acting as an extend stop for large pallet routing gates where product family changes require different resting lengths.
Bulk Container Flappers
Adjusting the flap closing depth on heavy-duty bulk packaging lines to accommodate varying container heights.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB the Right Cylinder?
Choosing this 125 mm bore provides a massive 6135.9 N push at 0.5 MPa, whereas stepping down to an 80 mm bore yields 2513.2 N, and a 160 mm bore increases push to 10053.1 N. If your end-position never varies, a fixed-stroke ACQ cylinder is simpler and suffices. When ordering, confirm the 125 mm bore, 175 mm full stroke, 100 mm window, plus 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 ACQJ125X175-100SB FAQ
It delivers 6135.9 N push and 5733.8 N pull at 0.5 MPa, 8590.3 N push at 0.7 MPa, and a maximum push of 1251 kgf at 1.0 MPa. The full stroke is 175 mm, but the external adjuster allows the extend stroke to be shortened by up to 100 mm, giving a usable extend range of 75-175 mm.
The external M27x2.0 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke length only. It does not alter the piston area, so force remains identical to a standard ACQ. The cylinder uses a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-100SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.