Airtac MARF Stainless Steel Mini Air Cylinder MARF63X300S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF63X300S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 mm
- Port size1/4"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF63X300S
A 300 mm reach on AirTAC's biggest round-body mini: the MARF63X300S is double acting with an adjustable air cushion at each end and a front flange that is part of the front cover, not a bolted-on accessory. Push at 0.5 MPa is 1557.9 N against pull of 1457.4 N, generated inside a stainless tube whose 20 um hard-chrome rod shrugs off moisture and light washdown.
Over 300 mm the 16 mm rod will bend if the load is unguided, so keep side loads off it or add external rails. Budget about 935 N for actual work at 0.5 MPa, enough to raise roughly 79 kg vertically at a 2:1 margin, and read stroke position with any CMSG / DMSG / EMSG switch since the piston magnet is fitted as standard.
Airtac MARF Stainless Steel Mini Air Cylinder MARF63X300S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF63X300S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 mm |
| Acting type | Double acting + cushion (front mount) |
| 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 MARF Stainless Steel Mini Air Cylinder MARF63X300S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 63 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
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 MARF Stainless Steel Mini Air Cylinder MARF63X300S Is Used
Carton pusher at a belt diverter
Pushes cartons off a 600 mm wide belt at a diverter; 1558 N at 0.5 MPa moves a 40 kg stack sideways through the full 300 mm of travel.
Guard door lift on a molding press
Raises an aluminium machine guard door weighing about 70 kg, staying inside the roughly 79 kg vertical-lift figure with margin to spare.
Lid press at a tote-filling station
Presses lids onto 20 L pails on a filling line, the 300 mm stroke clearing the tote rim completely between cycles.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF63X300S the Right Cylinder?
Check two things before ordering this length: side load and cushion tuning. With 300 mm of unsupported rod, guide the load externally instead of letting the rod carry lateral force, and adjust the needle screws gently on first run because the variable cushion must be set to your speed within the 30-800 mm/s band. If 1558 N is more than the job needs at 0.5 MPa, the 50 mm bore (981 N push) runs cheaper; and remember that with air off this cylinder drifts rather than holding, so pair it with a rod lock when position matters. The MACD double-rod version is worth a look when a through-rod arrangement suits the machine better.
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 MARF Stainless Steel Mini Air Cylinder MARF63X300S FAQ
Expect 1557.9 N push and 1457.4 N pull at 0.5 MPa; at 0.7 MPa these become 2181 N and 2040.3 N, with a theoretical ceiling of 317.7 kgf at 1.0 MPa. The working range is 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s, with proof pressure of 1.5 MPa (215 psi).
No. Every MAR cylinder ships with the piston magnet already fitted, so CMSG, DMSG and EMSG switches mount directly on the 63 mm barrel anywhere along the 300 mm stroke and can be repositioned later as the application changes.
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