Airtac MGC Stainless Steel Mini Cylinder MGC50X125S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC50X125S 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 MGC50X125S
The AirTAC MGC50X125S 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 the fixed bumper pad on the plain MG, this adjustable cushion lets you tune the needle valve so the piston decelerates smoothly near end of travel, which makes the MGC a better choice at higher piston speeds or with heavier moving loads. 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. The magnet fitted under the S code allows CMSG, DMSG or EMSG switches to be mounted for position feedback.
Construction follows the JIS mini-cylinder footprint: 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. It is not a tie-rod or extruded-profile design. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, temperature range -20 to +70 C, and speed range 30-800 mm/s on air filtered to 40 um. Ports are 1/4" and the male rod thread is M18x1.5. Note that the cushion only decelerates end of stroke; 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.
Airtac MGC Stainless Steel Mini Cylinder MGC50X125S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC50X125S |
|---|---|
| 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 MGC50X125S
| 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 MGC50X125S Is Used
High-speed pusher station
The variable air cushion absorbs the end-of-stroke impact of a fast-moving carton pusher, letting the 50 mm bore run near the top of its 30-800 mm/s range without hammering the covers.
Pallet gate and diverters
With 981.3 N push at 0.5 MPa and adjustable deceleration, the MGC50X125S swings or diverts heavier pallet loads on conveyor lines smoothly and repeatably.
Clamping and press-fit fixtures
About 100 kgf of push force at 0.5 MPa, tunable cushioning and CMSG/DMSG/EMSG sensing via the fitted magnet suit automated clamp or light press operations.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC50X125S the Right Cylinder?
At 50 mm bore the MGC sits in the upper half of the range: 981.3 N push at 0.5 MPa, roughly 100 kgf, so a sensible working load is about 58 kg horizontally (0.6 of the force) or roughly 50 kg for vertical lifting. If you need more, the 63 mm bore pushes 1557.9 N at 0.5 MPa; if less, the 40 mm bore gives 628.3 N. For 20-40 mm bores the bumper-type MG is the no-cushion alternative, but only the MGC (and MGCD) exists in 50 and 63 mm. The variable air cushion is the reason to pick this over a plain bumper mini cylinder when speeds approach the upper part of the 30-800 mm/s range or the moving mass is heavy. Mounting is FA flange or LB foot, with I and Y rod knuckles for the rod end; the 125 mm stroke is well inside the 500 mm standard maximum. The fitted magnet (S code) accepts CMSG/DMSG/EMSG switches. Keep side loads off the rod on longer strokes and guide the load externally.
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 MGC50X125S FAQ
At 0.5 MPa it pushes 981.3 N and pulls 824.3 N; at 0.7 MPa push is 1373.8 N and pull 1154 N. The theoretical maximum at 1.0 MPa is 200.1 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure.
The MGC50X125S has a variable air cushion at both ends: adjust the needle to decelerate the piston smoothly near end of travel, ideal at higher speeds or with heavy moving loads. It is adjustable, not a fixed bumper pad, and it only decelerates - it is not a lock or brake, so the cylinder will not hold position on air loss. Fit an external rod lock or pilot check valve for a held load. The SUS304 stainless barrel and hard-chrome rod suit the -20 to +70 C range, and the fitted magnet accepts CMSG/DMSG/EMSG switches.
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