Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 400mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ40 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH
A 40 mm bore pushing 628.3 N at 0.5 MPa over a 400 mm stroke, the MAC40X400SCAH is AirTAC's round-body MAC mini cylinder in double-acting trim: air both extends and retracts the rod, and a variable air cushion at each end absorbs end-of-stroke shock. Behind that force sits a riveted stainless-steel barrel and a hard-chrome plated 16 mm rod - a pair that stands up to washdown and damp plants where painted minis corrode.
Plan the mechanism around roughly 377 N of usable push at 0.5 MPa (60% of the rating) instead of the full headline figure. The magnet is built in as standard, so CMSG / DMSG / EMSG switches drop on with no special piston. The CA pivot back cover lets the body swing on a rear pin, and speed spans 30-800 mm/s.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 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.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH Is Used
Swinging gate actuator
Pivots a 30 kg conveyor gate through 90 degrees on the CA rear pin, with both air cushions easing the stop at gate speeds near 300 mm/s.
Battery-cover clamp
Clamps forklift battery covers across a 400 mm closing stroke, working off roughly 377 N of usable force at 0.5 MPa.
Bottle-line reject pusher
Knocks off-spec PET bottles from a filling line; the riveted stainless barrel shrugs off the caustic washdown used around fillers.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH the Right Cylinder?
Step down to the 32 mm bore (402.2 N push at 0.5 MPa) for lighter loads, or up to the 50 mm bore (981.3 N) when 628.3 N runs marginal. Note this cylinder cannot park a load: when the valve centres or air pressure drops, the rod coasts freely, so add a pilot check valve or rod lock for held positions. The CA pivot back cover pairs with SDB pivot brackets or I/Y rod knuckles, and FA flange or LB foot mounts are on the menu. Ports are 1/8 inch with an M12x1.25 rod thread. One caution: the trailing H in MAC40X400SCAH is not part of the standard MA ordering code, so confirm its meaning from the datasheet before ordering. A 400 mm stroke also means side load should be minimised - guide the payload externally to protect the 16 mm rod.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa that rises to 879.6 N push and 738.9 N pull. Theoretical peak is 128.1 kgf at 1.0 MPa. Working pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof.
CA is a pivot back cover - the cylinder swings on a rear pin without added brackets, and FA flange, LB foot or SDB pivot hardware can be added. The piston magnet is built in as standard, so CMSG, DMSG and EMSG switches clip straight on.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCAH
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.