
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20B 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 ACQJ80X90-20B is a double-acting, single-rod JIS compact cylinder fitted with an external extend stop. A threaded adjuster and lock nut let you trim the forward stroke on the machine, yielding a usable extend range of 70-90 mm from the 90 mm total. The return stroke remains fixed at its original length. Because the piston diameter is unaltered, output force matches a standard ACQ exactly.
This 80 mm bore unit delivers 2513.2 N push force at 0.5 MPa and 3518.5 N at 0.7 MPa. It features a 25 mm rod with a male M22x1.5 thread for direct mounting, PT3/8 ports, and fixed NBR elastomer bumpers at both ends. The body includes sensor grooves, though this specific SKU ships without a magnet. Operating pressure spans 0.15 to 1.0 MPa.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20B |
|---|---|
| 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).
Fine-tune the extend position during press tooling changes without machining new spacers, using the M20x1.5 adjuster to hit the exact 70-90 mm working depth.
Adapt end-stops rapidly for new product variants on an automated assembly line, saving setup time by simply turning the external stop nut to the required extend length.
Dial in the exact folding depth on packaging equipment for varying carton sizes, relying on the fixed elastomer bumper to absorb the 30-500 mm/s impact energy.
Selecting this 80 mm bore provides 2513.2 N push and 2267.8 N pull at 0.5 MPa. If your application requires less force, stepping down to a 63 mm bore yields 1558.6 N push, while moving up to a 100 mm bore offers 3927.0 N push. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 90 mm total stroke, 20 mm adjuster window, male M22x1.5 rod thread, and the lack of a magnet.
Quick checklist
The usable extend range is 70-90 mm (90 mm total stroke minus the 20 mm window). The 80 mm bore generates 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. It features a 25 mm rod, PT3/8 port, and an M20x1.5 adjuster thread.
No, the adjuster only changes the extend stroke length, not the piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at each end, not an adjustable air cushion. Note that this model ships without a sensor magnet, and a plain cylinder will not hold its load on air loss without an external rod lock.
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