Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting, double rod + cushion
- Rod threadM18×1.5
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250
The AirTAC MGCD50X250 is a JIS-standard round-body mini cylinder, double acting and double rod, with a variable air cushion at both ends. A 20 mm rod exits each cover with the same M18x1.5 male thread, so the rod ends move together and both strokes see the rod-side area: the output is about 824.3 N each way at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168.1 kgf at 1.0 MPa. The adjustable cushion decelerates the piston smoothly at each end, letting this 50 mm bore run faster or carry heavier loads than an unbuffered cylinder of the same size. As a rough rule of thumb, size the working load at about 0.6 of the push force, which for this cylinder means roughly 50 kg horizontally, or about 42 kg as a safe vertical figure.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and hard-chrome plated 20 mm rods for corrosion resistance and long seal life. The two-way lubricant-storing piston seal keeps maintenance intervals long, and the 250 mm stroke sits well inside the 500 mm maximum standard stroke for this bore. Air supply is filtered to 40 um, operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, temperature range is -20 to +70 C, and speed is 30-800 mm/s. Ports are 1/4". The rear rod end is free for a stop flag, position marker or a second load, and the through-rod naturally resists rotation. Mount with FA flange or LB foot, add I or Y rod knuckles, and note that no magnet is fitted: order the S code to enable CMSG, DMSG or EMSG position sensing.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod + 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 MGCD Stainless Steel Mini Air Cylinder MGCD50X250 Is Used
High-speed anti-rotation transfer
The through-rod keeps the load from twisting while the variable air cushion lets the 50 mm bore shuttle parts at up to 800 mm/s and still stop smoothly at both ends of the 250 mm stroke.
Twin-load press with soft stop
Rod ends on both covers each deliver about 824.3 N at 0.5 MPa, so light pressing or staking can be done from either side, with the adjustable cushion absorbing the impact at bottom of stroke.
Rear-switch slide
Use the rear rod end to carry a flag past CMSG or DMSG switches (with the -S magnet option) for end-of-stroke confirmation on a long-travel slide, while the cushion damps the return.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250 the Right Cylinder?
Choose the MGCD50X250 when you need equal force in both directions on a long 250 mm stroke with smooth, adjustable end deceleration: the double rod gives the same 824.3 N at 0.5 MPa whichever way it moves, plus anti-rotation and a spare rear rod end. If 824 N is marginal, step up to the MGCD63; if it is generous, the MGCD40 is the smaller cushioned double-rod option. For a bumper-padded double-rod cylinder in the 20-40 mm range, look at the MGD instead, and for a single rod with a cushion, the MGC. Mounting is FA flange or LB foot with I or Y knuckles (no SDB or CB). For long 250 mm strokes, keep side loads low or guide the load externally, and remember the cushion only decelerates the stroke end: it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss. Order the -S option if you want CMSG/DMSG/EMSG switch sensing.
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 MGCD Stainless Steel Mini Air Cylinder MGCD50X250 FAQ
Because both strokes act on the rod-side area, output is equal both ways: 824.3 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the fluid is air filtered to 40 um. Ports are 1/4" and the rod thread is M18x1.5 on both ends.
The MGCD50X250 has an adjustable air cushion at both ends that decelerates the piston near each stroke end, allowing higher speeds and heavier loads than an unbuffered cylinder. It is a cushion, not a brake: it does not hold the load on air loss, so add an external rod lock or pilot check valve for that. Unlike the MGD, which uses fixed bumper pads, the MGCD cushion is adjustable; and unlike the single-rod MGC, the MGCD has a rod at both covers, so force is equal in both directions. The optional S code adds a magnet for CMSG, DMSG or EMSG switches; without it, no sensor can be mounted.
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