Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA
The AirTAC Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA is a genuine double acting standard round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke450 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionFixed anti-impact bumper pads
About the Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA
The MA40X450-S-CA pairs the largest MA bore, 40 mm, with a long 450 mm stroke inside a riveted stainless round barrel, finished with a CA pivot back cover for direct clevis-style mounting. Air drives the 16 mm hard-chrome rod both ways, and fixed anti-impact bumper pads take the sting out of each stroke end. At 0.5 MPa the bore delivers 628.3 N of push and 527.8 N on the return, so in practical terms the rod can lift roughly 64 kg vertically, or about 32 kg with a comfortable 2:1 margin kept in reserve. Because the barrel is stainless steel and the covers are aluminium alloy rolled tightly onto it, this cylinder shrugs off washdown spray and damp outdoor air where painted steel minis would rust. The magnet comes built in as standard equipment, so a CMSG, DMSG or EMSG switch clamps straight onto the barrel for end-of-stroke signalling - no special piston required. Note that with the valve centred the rod is free to drift under load; add a pilot check valve or rod lock if the 450 mm stroke must hold position.
Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA Technical Specifications
| Model | Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA |
|---|---|
| Series | MA mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| 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 | Fixed anti-impact bumper pads |
| 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 MA Stainless Steel Mini Air Cylinder MA40X450-S-CA
| MA | Standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 MA Stainless Steel Mini Air Cylinder MA40X450-S-CA Is Used
Coffee hopper gate lift
Raises the slide gate under a 25 kg green-bean weigh hopper at a roastery; the bore's vertical lift equivalent of about 64 kg covers the gate, linkage and product with margin.
Fish-line reject pusher
Knocks off-cuts sideways off a salmon-processing conveyor between washdowns; the stainless barrel and chrome rod resist brine and daily hose-down far better than a painted mini.
Waterjet door stroke signal
Swings a sliding access door on a stone-cutting waterjet enclosure over 450 mm, with a DMSG switch on the barrel confirming the closed position to the machine PLC.
Is the Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA the Right Cylinder?
Step down to the MA32 if your job needs less muscle: at 0.5 MPa it gives 402.2 N push and 345.6 N pull, enough for lighter fixtures. When even 879.6 N at 0.7 MPa will not cut it, move up to the MAC family, which carries the same style into 50 mm and 63 mm bores with adjustable air cushioning - confirm its force figures from the datasheet. A 450 mm stroke puts real leverage on the 16 mm rod, so guide the load in external slides or linear bearings and keep side forces off the rod; an SDB pivot bracket or LB foot adds support on long strokes. Matching the CA pivot back cover to an I or Y rod knuckle gives a clean articulated joint without custom brackets.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MA Stainless Steel Mini Air Cylinder MA40X450-S-CA FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. Raise supply to 0.7 MPa and push rises to 879.6 N with 738.9 N on the return. Theoretical maximum force is 128.1 kgf at 1.0 MPa. Air supply range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), rod speed 30-800 mm/s, and the 1/8-inch PT ports and M12x1.25 male rod thread suit a 16 mm rod.
The CA pivot back cover gives you a built-in pivoting joint, so the cylinder can swing with the load instead of fighting it - handy on long 450 mm travels where alignment drifts. The magnet is already in the piston as standard, so snapping a CMSG or DMSG switch onto the stainless barrel gives end-of-stroke feedback, and the fixed bumper pads soften the impact at both ends of travel.
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