This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X300SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X300SB in place of this model. 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 ACPD Double Rod Compact Cylinder ACPD40X300SB
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 300mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X300SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke300 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- StatusDiscontinued → ACED40X300SB
- 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 ACPD Double Rod Compact Cylinder ACPD40X300SB
This is a double acting, double-rod compact cylinder built to the DIN-standard ACPD pattern: a 40 mm bore with a 12 mm rod exiting BOTH covers, so the output force is equal in both directions. At 0.5 MPa it delivers 571.8 N either way (800.5 N at 0.7 MPa), and the through-rod resists rotation and side load while the rear rod can carry a sensor flag. The 300 mm stroke exceeds the 200 mm standard limit for bore 40, so it is a made-to-order build. Note this model is discontinued; the current-production successor is the ISO 21287 ACED40X300.
The hard-anodized aluminium body with an S45C hard-chrome rod runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, at 30-500 mm/s, with a fixed TPU bumper at each end. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits long-stroke work inside tight gantries and guards. Because the S code is fitted, CMSE / DMSE reed or solid-state switches can be mounted directly. As a sizing rule, plan on about 343 N (roughly 29 kg lifted vertically with a 2:1 margin) of real work at 0.5 MPa rather than the full 571.8 N rating.
Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X300SB |
| Bore size | Ø40 mm |
| Stroke | 300 mm |
| Acting type | Double acting, double rod |
| 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 ACED40X300SB (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 572 N |
| 0.7 MPa | 800 N |
| Max (@1.0 MPa) | 117 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 (adjustable stroke).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB Is Used
Reciprocating conveyor pusher
The through-rod gives 571.8 N in each direction at 0.5 MPa, so a single cylinder can push cartons off a line on the forward stroke and retract the pusher plate with the same force, no return spring needed.
Gantry position feedback
With the -S magnet fitted, CMSE or DMSE switches ride the extrusion to signal end positions on a 300 mm travel pick-and-place gantry, while the rear rod carries a second flag for mid-stroke detection.
Vertical press stamping fixture
A marking or embossing die on the male-threaded rod uses about 343 N of usable force at 0.5 MPa (roughly 29 kg vertical lift with a 2:1 margin) to stamp part numbers on aluminium housings.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB with the ACED40X300SB
Choose this model when you need equal force in both directions over a long 300 mm travel: the 40 mm bore gives 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, identical on both strokes. If your load is lighter, the 32 mm bore offers 345.6 N at 0.5 MPa; if you need more, the 50 mm bore reaches 881.2 N. The 300 mm stroke is non-standard for bore 40 (max standard 200 mm), so it is made to order. The male rod thread (B code) suits I/Y rod knuckles, and FA/FB flange or LB foot mounts bolt to the ISO 21287 face. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for held loads. For new projects, specify the ACED40X300 instead and confirm the ISO 21287 mounting dimensions before swapping.
Replacement checklist
- ✓ Current-production ACE → ACED40X300SB
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPD Double Rod Compact Cylinder ACPD40X300SB FAQ
Yes. Because a rod exits both covers, both strokes use the rod-side area: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, equal push and pull. At 1.0 MPa the bore is rated up to 116.6 kgf. 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 a fixed TPU bumper at each end. The 300 mm stroke is a made-to-order length above the 200 mm standard for bore 40.
The ACPD family is no longer in production. The current-production drop-in is the ISO 21287 ACED40X300, which matches the same 40 mm bore, 300 mm stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACPD was built to the DIN-standard ACP pattern, and check the FA/FB flange or LB foot hole pattern on your machine.
Related AirTAC ACE Cylinders
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