Airtac MAC Stainless Steel Mini Air Cylinder MAC63X400SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC63X400SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø63mm bore and 400mm stroke, 1/4" 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.
- BoreØ63 mm
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC63X400SU
A 400 mm stroke on a 63 mm bore makes the MAC63X400SU the long-reach member of the cushioned MA line: double acting, variable air cushion at both ends, and a riveted stainless barrel that tolerates washdown where painted minis blister. The U flat-end back cover presents a plain machined face for fixed mounting, and 0.5 MPa of supply gives a 1557.9 N push stroke.
Because the barrel is stainless and the 16 mm rod is hard-chrome plated carbon steel, mild corrosion and outdoor damp are non-events. Plan on roughly 935 N of honest working force at 0.5 MPa rather than the full 1557.9 N rating, which equals lifting about 79 kg vertically with a 2:1 margin. The standard magnet accepts CMSG / DMSG / EMSG switches for stroke-end signalling.
Airtac MAC Stainless Steel Mini Air Cylinder MAC63X400SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC63X400SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 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 MAC63X400SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 63 | 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 MAC63X400SU Is Used
Lift-gate actuator
Raises a 70 kg machine guard on a food line; the stainless barrel shrugs off daily hose-down and offers about 79 kg of vertical capability with margin.
Dock-leveler latch push
Drives locking pins on modular dock ramps across a 400 mm throw, seating them gently thanks to the variable cushion.
Battery-change gate ram
Pushes the safety gate open in forklift battery bays; the flat U cover bolts flush to the frame plate.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC63X400SU the Right Cylinder?
The 50 mm bore (981.3 N push at 0.5 MPa) covers lighter jobs; 63 mm is the largest bore in this mini range, so size up only if your frame takes the bigger barrel. Long 400 mm strokes amplify side load - the 16 mm rod is not a guide, so carry the load on linear bearings. Air is the only return and holding force: a centred valve means drift, so fit a pilot check or rod lock where position matters. FA flange, LB foot or SDB pivot brackets bolt to the U flat-end cover.
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 MAC63X400SU FAQ
Push at 0.5 MPa is 1557.9 N and pull is 1457.4 N; at 0.7 MPa expect 2181.0 N push and 2040.3 N pull, with 317.7 kgf theoretical maximum at 1.0 MPa. Air supply spans 0.15-1.0 MPa (22-145 psi), speed runs 30-800 mm/s and the port size is 1/4".
The U flat-end cover gives a clean fixed face that bolts straight to machine plates, avoiding pivot brackets. Inside, the two-way piston seal traps its own grease for low-friction running, and the variable air cushion trims the 400 mm stroke's end impact - open the needles fully at commissioning, then close them gradually.
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