Airtac MGC Stainless Steel Mini Cylinder MGC50X125
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC50X125 is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø50mm bore and 125mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ50 mm
- Stroke125 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM18×1.5
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC50X125
The AirTAC MGC50X125 is a double acting, JIS-standard round-body mini cylinder with a 50 mm bore and 125 mm stroke, fitted with a variable air cushion at both stroke ends. Unlike a fixed bumper pad, the adjustable cushion needle lets you dial in end-of-stroke deceleration, so this cylinder can run at higher piston speeds (up to 800 mm/s) and carry heavier moving loads without hammering the covers. At 0.5 MPa it delivers 981.3 N push and 824.3 N pull, rising to 1373.8 N push at 0.7 MPa, with a theoretical maximum of 200.1 kgf at 1.0 MPa.
Construction follows the MG family recipe: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated 20 um carbon-steel rod and a two-way piston seal that also stores lubricant. Air supply should be filtered to 40 um, operating pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and the temperature range is -20 to +70 C. Ports are 1/4" with PT threading as standard. Note that the cushion only decelerates the stroke end; it is not a lock or brake, so use an external rod lock or pilot check valve if the load must be held on air loss. This unit ships without the magnet, so no position sensor can be mounted unless the optional S code is ordered.
Airtac MGC Stainless Steel Mini Cylinder MGC50X125 Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC50X125 |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M18×1.5 |
| 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 MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | 1155 N |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MGC Stainless Steel Mini Cylinder MGC50X125
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MGC Stainless Steel Mini Cylinder MGC50X125 Is Used
Case and carton press-down
The 981.3 N push at 0.5 MPa gives enough force to seat flaps or press cartons on a packing line, while the variable air cushion stops the platen from slamming at end of stroke at high cycle rates.
Conveyor divert and stopper
Fast diverting and stopping on 50 mm-bore-class lines benefits from adjustable end-of-stroke deceleration, keeping the mechanism quiet and extending cover life at speeds up to 800 mm/s.
Pallet clamp and eject
With about 60 kg safe working load at 0.6 of push force, the MGC50X125 clamps or ejects pallets and totes in warehouse fixtures, and the FA flange or LB foot mounting adapts to existing frames.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC50X125 the Right Cylinder?
At 50 mm bore the MGC50X125 sits near the top of the MGC range: 981.3 N push at 0.5 MPa, roughly 100 kgf. A practical rule of thumb is to size the real working load at about 0.6 of the push force, so plan for roughly 60 kg safe horizontal load, or about 50 kg if lifting vertically. If you need more force, step up to the 63 mm bore (1557.9 N push at 0.5 MPa); if you can do without cushioning, the plain bumper MG covers 20-40 mm bores as a lighter alternative. The variable air cushion is the main reason to pick MGC over MG when stroke speeds are high or the moving mass is heavy. Mounting options are FA flange and LB foot, with I and Y rod knuckles for the rod end. If you need position feedback, order the -S magnet variant to accept CMSG, DMSG or EMSG sensors. The 125 mm stroke is well within the 500 mm standard range, but keep side loads off the rod on longer strokes and use a guide if the application demands it.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA) & knuckle
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 and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGC Stainless Steel Mini Cylinder MGC50X125 FAQ
At 0.5 MPa it pushes with 981.3 N and pulls with 824.3 N; at 0.7 MPa that rises to 1373.8 N push and 1154 N pull. The theoretical maximum is 200.1 kgf at 1.0 MPa. For sizing, keep the working load around 0.6 of the 0.5 MPa push force, so roughly 60 kg horizontal or about 50 kg vertical lift.
The cushion is adjustable at both ends: turn the needle to meter exhaust air and decelerate the piston smoothly near end of travel, which suits higher speeds and heavier moving loads than the fixed bumper MG. It only decelerates, it is not a lock or brake, so fit an external rod lock or pilot check valve if the load must stay in place on air loss.
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