Airtac MAC Stainless Steel Mini Air Cylinder MAC63X425SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC63X425SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø63mm bore and 425mm 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
- Stroke425 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 MAC63X425SCA
Long-travel jobs need a barrel that stays straight and rust-free, and the MAC63X425SCA delivers both: a stainless round tube rolled onto aluminium covers, with a hard-chrome rod gliding inside. Double acting with a variable air cushion at each end, it swings 1557.9 N of push and 1457.4 N of pull at 0.5 MPa across a 425 mm stroke.
The CA pivot back cover is the reason to pick this variant - it lets the whole cylinder swing with a lever or gate instead of fighting the mechanism. Plan on roughly 935 N of real working force at 0.5 MPa, and keep the needle screws backed off on first run so the cushion is fully open before you slow it down. The magnet ships fitted as standard, so CMSG / DMSG / EMSG switches need no special-order piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC63X425SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC63X425SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 425 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 MAC63X425SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×425 | 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 MAC63X425SCA Is Used
Bottling diverter gate
Swings a 900 mm diverter gate across a bottle conveyor, using the CA pivot so the cylinder body rotates with the gate arm through every cycle.
Ink drum tipper
Tilts 200 L ink drums on a printing-plant decanting stand; the 425 mm stroke gives the tipping arm its full sweep without a custom linkage.
Welding fixture swing arm
Rotates a clamp arm on a tube-welding fixture through its 90-degree motion, with cushioned ends protecting the fixture at full travel.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC63X425SCA the Right Cylinder?
Size down to bore 50 (981.3 N push at 0.5 MPa) when the load is light; there is no step up, because 63 mm is the largest MAC bore. With 425 mm of travel, side loads are the main risk - guide the load on rails or a cam follower so the 16 mm rod carries thrust only. If the gate must hold position during a power cut, add a pilot check valve; this cylinder drifts when air is removed and the cushion is not a brake.
Back-cover options U (flat end) and CM (round end) exist for rigid frames, but for a swinging linkage the CA pivot plus an SDB bracket keeps the barrel aligned through its arc.
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 MAC63X425SCA FAQ
At 0.5 MPa: 1557.9 N push and 1457.4 N pull. At 0.7 MPa: 2181.0 N push and 2040.3 N pull. Theoretical maximum at 1.0 MPa is 317.7 kgf. Ports are 1/4 inch, rod thread is M14x1.5, and the 425 mm stroke sits within the 500 mm standard range for this bore.
Long strokes usually ride in linkages that arc, and a rigidly bolted cylinder would bind. The CA pivot back cover lets the barrel follow the arc. Pair it with the SDB pivot bracket when both ends should articulate, and remember to back the cushion screws off before the first full-speed cycle.
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