
The AirTAC Airtac ACQ Ultra Thin Air Cylinder ACQ40X100BH is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 100mm stroke, PT1/8 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.
The AirTAC ACQ40X100BH is a double-acting JIS compact cylinder engineered for space-constrained actuation, delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its short C-clip and riveted piston-to-rod assembly drastically reduces overall axial length compared to round-body units, saving valuable machine footprint depth. The bore is hard-anodized for low-friction wear, and the aluminum body integrates seamlessly with standard AirTAC compact-cylinder mounting accessories.
This specific configuration features a 100 mm stroke at the maximum standard limit for the Ø40 bore, operating via a PT1/8 port. Equipped with a male M14x1.5 thread on the Ø16 mm piston rod, it couples directly to tooling without extra adapters. Deceleration at stroke ends is handled by fixed NBR elastomer bumpers rather than an adjustable air cushion, so high-energy cycles may require an external shock absorber to prevent impact wear.
| Model | Airtac ACQ Ultra Thin Air Cylinder ACQ40X100BH |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| 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 |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).
Drives a 100 mm stroke diverter arm on logistics conveyor lines, utilizing the 628.3 N push force to reliably redirect heavy cartons at high throughput.
Opens and closes sliding safety doors on CNC lathes where axial depth is restricted, taking advantage of the compact C-clip body profile and male M14x1.5 rod coupling.
Folds top flaps on continuous-motion carton packaging machines, relying on the fixed NBR bumper to absorb the 100 mm end-of-stroke impact without external adjustment.
This 40 mm bore generates 628.3 N push at 0.5 MPa. If your application requires less force, the next bore down is Ø32 providing 402.1 N push; if you need higher thrust, step up to the Ø50 bore which yields 981.8 N push at 0.5 MPa. Keep in mind that a plain ACQ body does not hold its load if air pressure drops or the directional valve is centered—the piston will drift, and the fixed bumper only decelerates it near the end of travel. For fail-safe position holding, specify an external rod lock or a pilot-operated check valve. When ordering, confirm the essentials: 40 mm bore, 100 mm stroke, PT1/8 port, no sensor magnet, and the male M14x1.5 rod thread.
Quick checklist
The 40 mm bore provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa with a speed range of 30-500 mm/s.
No. It uses fixed NBR elastomer bumpers at both ends to absorb end-stop impact, which cannot be field-adjusted. It also does not function as a brake; the rod will drift if air is lost. For high-speed energy dissipation, add an external shock absorber, and for position holding, use an external rod lock.
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