Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke70 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB
The AirTAC ACQJ80X70-40SB is a double-acting JIS compact cylinder with a 70mm full stroke and a 40mm adjustable extend window, allowing you to set the forward stroke anywhere between 30mm and 70mm directly on the machine. It includes a male piston rod thread (M22x1.5) for direct load coupling and a built-in magnet (-S) for electronic or reed switch sensing. The retract stroke remains completely unaffected by this adjustment.
Because the adjuster only limits travel and not the piston area, output force stays identical to a standard ACQ of the same bore, delivering 2513.2N push and 2267.8N pull at 0.5MPa. The unit uses a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Operating pressure spans 0.15 to 1.0MPa, with a PT3/8 port and an M20x1.5 external adjuster thread.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 70 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.
Theoretical Output Force (Ø80mm)
| 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.
Model Code: Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB Is Used
Machining Fixture Stops
Dial in the exact clamping extension on a CNC machining fixture without machining new spacer blocks for every part revision.
Packaging Changeover Diverters
Adjust the stroke of a conveyor diverter gate during product format changeovers to accommodate varying carton widths.
Assembly Press Trial Positions
Establish the precise downward end position during new product assembly press setup, preventing over-travel and damage.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB the Right Cylinder?
If 2513.2N push at 0.5MPa is excessive, dropping to a 63mm bore yields 1558.6N push, while stepping up to a 100mm bore provides 3927.0N push. A fixed-stroke ACQ is adequate if your end position never requires tweaking, but the ACQJ80X70-40SB is ideal for setups requiring variable extend stops. When ordering, verify the 80mm bore, 70mm full stroke, 40mm window, -S magnet, and -B male 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40SB FAQ
It delivers 2513.2N push and 2267.8N pull at 0.5MPa, 3518.5N push at 0.7MPa, and a maximum push of 513kgf at 1.0MPa. The full stroke is 70mm with a 40mm adjustable window, providing a usable extend range of 30-70mm.
No, the external M20x1.5 threaded stop with lock nut only shortens the extend stroke length, leaving the piston area and force unchanged. The cylinder uses fixed elastomer bumpers, not an adjustable air cushion, and will not hold a load if air pressure is lost without an external rod lock.
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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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