This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE40X85SB, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACP Compact Cylinder ACP40X85SB
The AirTAC ACP Compact Cylinder ACP40X85SB is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 85mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X85SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke85 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → ACE40X85SB
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACP Compact Cylinder ACP40X85SB
A double acting compact cylinder built to the DIN-standard short-body format, the ACP40X85SB pairs a 40 mm bore with an 85 mm stroke and a 12 mm male-threaded rod (the B code). At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa those rise to 879.6 N and 800.5 N, with a theoretical ceiling of 128.1 kgf at 1.0 MPa. The hard-anodized aluminium body with an S45C hard-chrome rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
This unit is discontinued; the current-production direct is ACE40X85 in the same bore, stroke and force class, so confirm ISO 21287 mounting dimensions before swapping. The short body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, and because the S code is present the optional -S magnet is fitted, so CMSE / DMSE reed or solid-state switches can be added for end-of-stroke sensing.
Airtac ACP Compact Cylinder ACP40X85SB Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP40X85SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X85SB |
| Bore size | Ø40 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 | Fixed bumper (both ends) |
| Max standard stroke | Up to 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE40X85SB (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 kgf | |
The ACE40X85SB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACP Compact Cylinder ACP40X85SB
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×85 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
Where the Airtac ACP Compact Cylinder ACP40X85SB Is Used
Fixture clamping on CNC machining centres
The 628.3 N push at 0.5 MPa clamps aluminium or small steel workpieces in dedicated jigs, and the short body fits between fixture plates where a full-length profile cylinder cannot.
Reject pusher on bottling lines
An 85 mm stroke sweeps off-spec bottles or cartons sideways at up to 500 mm/s, while the fitted -S magnet feeds CMSE or DMSE switches to confirm each push completed.
Vertical lift in battery-change stations
With about 38 kg of practical vertical lift capacity at 0.5 MPa, the bore 40 unit raises battery trays in warehouse swap stations; pair with a pilot check valve to hold position on air loss.
Replacing the Airtac ACP Compact Cylinder ACP40X85SB with the ACE40X85SB
Bore 40 sits mid-range: if 628.3 N at 0.5 MPa is more than your job needs, the 32 mm bore delivers 402.1 N push and 345.6 N pull; if you need more, the 50 mm bore reaches 981.7 N push and 881.2 N pull. The 85 mm stroke is well inside the 200 mm maximum standard stroke for this bore, so it ships as a standard length. Remember that a plain cylinder of this type drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. FA/FB flange, LB foot and CA/CB clevis mounts bolt to the same face, and the ACE40X85 is the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACE40X85SB
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACP Compact Cylinder ACP40X85SB FAQ
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa push is 879.6 N and pull is 800.5 N; the theoretical maximum is 128.1 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, and the 1/8" port depends only on the 40 mm bore. The model is discontinued - order ACE40X85 instead.
It is a compact DIN-standard cylinder whose hard-anodized aluminium body cuts about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end that only decelerates the rod. The S in the code means the optional -S magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted directly on the body. FA/FB flange, LB foot and CA/CB clevis options all share the same mounting face as the ACE40X85 replacement.
Related AirTAC ACE Cylinders
Request a Quote for the ACE40X85SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X85SB replacement — usually within 7-8 hours.