
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ80X90-40SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a usable extend range of 50 to 90 mm from the 90 mm full stroke, while the retract stroke remains completely unaffected. The piston area stays the same, so output force is identical to a standard ACQ of this 80 mm bore.
This configuration includes the -S magnet for electronic or reed switches and the -B male piston rod end (M22x1.5) that couples directly to your load. It features a 25 mm rod, PT3/8 port, fixed NBR elastomer bumpers at both ends, and an M20x1.5 external adjuster thread for precise positioning.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 90 mm |
| Adjuster thread | M20×1.5 |
| 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 | M16×2.0 (F) / M22×1.5 (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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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.
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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).
Dial in the exact extend stop from 50 to 90 mm during press tooling changes without machining new spacers.
Quickly alter the extend end position to accommodate different carton sizes on a packaging conveyor system.
Sweep through multiple extend endpoints on a materials testing rig to find the optimal contact point.
If you need less push force, the 63 mm bore yields 1558.6 N at 0.5 MPa, or step up to the 100 mm bore for 3927.0 N. A fixed-stroke ACQ suffices if your end position never varies, but this ACQJ80X90-40SB is the right choice when setups demand on-machine tuning without swapping parts. Confirm your ordering essentials: 80 mm bore, 90 mm full stroke, 40 mm window, magnet (S), and male rod thread (B).
Quick checklist
It delivers 2513.2 N push and 2267.8 N pull at 0.5 MPa, 3518.5 N push at 0.7 MPa, and a maximum push of 513 kgf at 1.0 MPa. The 40 mm window provides a usable extend range of 50 to 90 mm from the 90 mm full stroke.
No, the external M20x1.5 stop only limits how far the rod extends, so force is identical to a standard ACQ. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions, and the -S magnet works with reed or solid-state switches.
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