The SMC MB1 / MDB1 is a square-tube type air cylinder, designed as a double-acting, single-rod actuator. It is widely used for general automation where durability, versatility, and compatibility with auto switches are required.
Key Specifications & Features SMC MB1 / MDB1
Lightweight Design: Up to 10% lighter for bore sizes 50–100 mm thanks to optimized cover shapes.
Bore Sizes: ø32, ø40, ø50, ø63, ø80, ø100, ø125 mm.
Operating Pressure: Max. 1.0 MPa (proof pressure: 1.5 MPa).
Speed Range: 50 to 1000 mm/s (piston speed).
Temperature Range: –10 to 70 °C (–10 to 60 °C when equipped with switch).
Cushion Options: Air cushion or rubber bumper, reducing vibration and extending cylinder life.
Auto Switch Compatibility: Switches can be mounted on all four surfaces, with optional dust-preventing fasteners.
Port Thread Types: Rc, NPT, G.
Mounting Types: Basic, foot, rod flange, head flange, single/double clevis, and more.
Variants & Made-to-Order Options SMC MB1 / MDB1
MB1: Standard single rod
MB1W: Double rod
MB1K: Non-rotating rod type
With magnet: For auto-switch detection
Rod boot option: Protects rod in dusty or clean environments
Custom options include:
Heat-resistant types
Heavy-duty scraper
Adjustable stroke
Tandem cylinder
Stainless steel component versions
Benefits SMC MB1 / MDB1
Flexible mounting and design choices for a wide range of automation setups.
Reduced weight improves efficiency in machines with moving actuators.
Auto switch compatibility enhances position sensing and control.
Cushioning performance allows smooth operation, even under high load and speed.
Applications SMC MB1 / MDB1
The MB1 / MDB1 series is ideal for:
General factory automation (assembly, pick & place, handling systems).
Packaging machinery requiring smooth and precise actuation.
Clean or dusty environments (with rod boot and dust-resistant options).
High cycle operations, where durability and cushioning extend service life.
Special conditions such as high temperature, long stroke, or stainless-steel requirement
Specification
General Specifications
| Item | Specification |
|---|---|
| Type | Double-acting, single rod, square-tube cylinder |
| Bore Sizes (mm) | ø32, ø40, ø50, ø63, ø80, ø100, ø125 |
| Fluid | Air |
| Operating Pressure | Max. 1.0 MPa |
| Proof Pressure | 1.5 MPa |
| Ambient/Fluid Temperature | –10 to 70 °C (without switch), –10 to 60 °C (with switch) |
| Piston Speed | 50 – 1000 mm/s |
| Cushion | Air cushion (standard) or rubber bumper |
| Lubrication | Not required |
| Port Thread Types | Rc, NPT, G |
| Mounting Types | Basic, axial foot, rod flange, head flange, single/double clevis |
Cushion Energy Absorption (Air Cushion)
| Bore Size (mm) | Energy Absorption (J) |
|---|---|
| 32 | 2.2 |
| 40 | 3.4 |
| 50 | 5.9 |
| 63 | 11 |
| 80 | 20 |
| 100 | 29 |
| 125 (Rod side) | 31.4 |
| 125 (Head side) | 29.4 |
Basic Weight (Approx., Basic Mounting)
| Bore Size (mm) | Weight (kg) | Additional Weight per 50 mm Stroke (kg) |
|---|---|---|
| 32 | 0.47 | 0.16 |
| 40 | 0.62 | 0.19 |
| 50 | 1.10 | 0.27 |
| 63 | 1.36 | 0.34 |
| 80 | 2.54 | 0.47 |
| 100 | 3.51 | 0.62 |
| 125 | 5.68 | 0.97 |
Materials
| Component | Material |
|---|---|
| Cylinder Tube | Hard anodized aluminum alloy |
| Rod | Carbon steel, hard chrome plated |
| Head & Rod Cover | Aluminum die-cast, chromated |
| Piston & Gasket | Aluminum alloy / NBR |
| Cushion Seal | Urethane |
| Other Seals | NBR |
Made-to-Order Options
| Option Code | Description |
|---|---|
| XC3 | Special port location |
| XC4 | Heavy-duty scraper |
| XC5 / XB5 | Heat-resistant types (up to 110–150 °C) |
| XC6 / XC7 | Stainless steel piston rod or tie rods |
| XC8 / XC9 | Adjustable stroke types |
| XC10 / XC11 | Double stroke or dual rod |
| XC12 | Tandem cylinder |
| XC22 | Fluororubber seals |
| XC26 | Split pins instead of snap rings |
Order Code

Model List
| MB1B32-25Z | MDB1B32-25Z |
| MB1B32-50Z | MDB1B32-50Z |
| MB1B32-75Z | MDB1B32-75Z |
| MB1B32-100Z | MDB1B32-100Z |
| MB1B32-125Z | MDB1B32-125Z |
| MB1B32-150Z | MDB1B32-150Z |
| MB1B32-175Z | MDB1B32-175Z |
| MB1B32-200Z | MDB1B32-200Z |
| MB1B32-250Z | MDB1B32-250Z |
| MB1B32-300Z | MDB1B32-300Z |
| MB1B32-350Z | MDB1B32-350Z |
| MB1B32-400Z | MDB1B32-400Z |
| MB1B32-450Z | MDB1B32-450Z |
| MB1B32-500Z | MDB1B32-500Z |
| MB1B40-25Z | MDB1B40-25Z |
| MB1B40-50Z | MDB1B40-50Z |
| MB1B40-75Z | MDB1B40-75Z |
| MB1B40-100Z | MDB1B40-100Z |
| MB1B40-125Z | MDB1B40-125Z |
| MB1B40-150Z | MDB1B40-150Z |
| MB1B40-175Z | MDB1B40-175Z |
| MB1B40-200Z | MDB1B40-200Z |
| MB1B40-250Z | MDB1B40-250Z |
| MB1B40-300Z | MDB1B40-300Z |
| MB1B40-350Z | MDB1B40-350Z |
| MB1B40-400Z | MDB1B40-400Z |
| MB1B40-450Z | MDB1B40-450Z |
| MB1B40-500Z | MDB1B40-500Z |
| MB1B50-25Z | MDB1B50-25Z |
| MB1B50-50Z | MDB1B50-50Z |
| MB1B50-75Z | MDB1B50-75Z |
| MB1B50-100Z | MDB1B50-100Z |
| MB1B50-125Z | MDB1B50-125Z |
| MB1B50-150Z | MDB1B50-150Z |
| MB1B50-175Z | MDB1B50-175Z |
| MB1B50-200Z | MDB1B50-200Z |
| MB1B50-250Z | MDB1B50-250Z |
| MB1B50-300Z | MDB1B50-300Z |
| MB1B50-350Z | MDB1B50-350Z |
| MB1B50-400Z | MDB1B50-400Z |
| MB1B50-450Z | MDB1B50-450Z |
| MB1B50-500Z | MDB1B50-500Z |
| MB1B50-600Z | MDB1B50-600Z |
| MB1B63-25Z | MDB1B63-25Z |
| MB1B63-50Z | MDB1B63-50Z |
| MB1B63-75Z | MDB1B63-75Z |
| MB1B63-100Z | MDB1B63-100Z |
| MB1B63-125Z | MDB1B63-125Z |
| MB1B63-150Z | MDB1B63-150Z |
| MB1B63-175Z | MDB1B63-175Z |
| MB1B63-200Z | MDB1B63-200Z |
| MB1B63-250Z | MDB1B63-250Z |
| MB1B63-300Z | MDB1B63-300Z |
| MB1B63-350Z | MDB1B63-350Z |
| MB1B63-400Z | MDB1B63-400Z |
| MB1B63-450Z | MDB1B63-450Z |
| MB1B63-500Z | MDB1B63-500Z |
| MB1B63-600Z | MDB1B63-600Z |
| MB1B80-25Z | MDB1B80-25Z |
| MB1B80-50Z | MDB1B80-50Z |
| MB1B80-75Z | MDB1B80-75Z |
| MB1B80-100Z | MDB1B80-100Z |
| MB1B80-125Z | MDB1B80-125Z |
| MB1B80-150Z | MDB1B80-150Z |
| MB1B80-175Z | MDB1B80-175Z |
| MB1B80-200Z | MDB1B80-200Z |
| MB1B80-250Z | MDB1B80-250Z |
| MB1B80-300Z | MDB1B80-300Z |
| MB1B80-350Z | MDB1B80-350Z |
| MB1B80-400Z | MDB1B80-400Z |
| MB1B80-450Z | MDB1B80-450Z |
| MB1B80-500Z | MDB1B80-500Z |
| MB1B80-600Z | MDB1B80-600Z |
| MB1B80-700Z | MDB1B80-700Z |
| MB1B80-800Z | MDB1B80-800Z |
| MB1B100-25Z | MDB1B100-25Z |
| MB1B100-50Z | MDB1B100-50Z |
| MB1B100-75Z | MDB1B100-75Z |
| MB1B100-100Z | MDB1B100-100Z |
| MB1B100-125Z | MDB1B100-125Z |
| MB1B100-150Z | MDB1B100-150Z |
| MB1B100-175Z | MDB1B100-175Z |
| MB1B100-200Z | MDB1B100-200Z |
| MB1B100-250Z | MDB1B100-250Z |
| MB1B100-300Z | MDB1B100-300Z |
| MB1B100-350Z | MDB1B100-350Z |
| MB1B100-400Z | MDB1B100-400Z |
| MB1B100-450Z | MDB1B100-450Z |
| MB1B100-500Z | MDB1B100-500Z |
| MB1B100-600Z | MDB1B100-600Z |
| MB1B100-700Z | MDB1B100-700Z |
| MB1B100-800Z | MDB1B100-800Z |
| MB1B125-25Z | MDB1B125-25Z |
| MB1B125-50Z | MDB1B125-50Z |
| MB1B125-75Z | MDB1B125-75Z |
| MB1B125-100Z | MDB1B125-100Z |
| MB1B125-125Z | MDB1B125-125Z |
| MB1B125-150Z | MDB1B125-150Z |
| MB1B125-175Z | MDB1B125-175Z |
| MB1B125-200Z | MDB1B125-200Z |
| MB1B125-250Z | MDB1B125-250Z |
| MB1B125-300Z | MDB1B125-300Z |
| MB1B125-350Z | MDB1B125-350Z |
| MB1B125-400Z | MDB1B125-400Z |
| MB1B125-450Z | MDB1B125-450Z |
| MB1B125-500Z | MDB1B125-500Z |
| MB1B125-600Z | MDB1B125-600Z |
| MB1B125-700Z | MDB1B125-700Z |
| MB1B125-800Z | MDB1B125-800Z |
| MB1B125-1000Z | MDB1B125-1000Z |
| MDB1B32-25Z-M9BW | MDB1B32-25Z-A93 |
| MDB1B32-50Z-M9BW | MDB1B32-50Z-A93 |
| MDB1B32-75Z-M9BW | MDB1B32-75Z-A93 |
| MDB1B32-100Z-M9BW | MDB1B32-100Z-A93 |
| MDB1B32-125Z-M9BW | MDB1B32-125Z-A93 |
| MDB1B32-150Z-M9BW | MDB1B32-150Z-A93 |
| MDB1B32-175Z-M9BW | MDB1B32-175Z-A93 |
| MDB1B32-200Z-M9BW | MDB1B32-200Z-A93 |
| MDB1B32-250Z-M9BW | MDB1B32-250Z-A93 |
| MDB1B32-300Z-M9BW | MDB1B32-300Z-A93 |
| MDB1B32-350Z-M9BW | MDB1B32-350Z-A93 |
| MDB1B32-400Z-M9BW | MDB1B32-400Z-A93 |
| MDB1B32-450Z-M9BW | MDB1B32-450Z-A93 |
| MDB1B32-500Z-M9BW | MDB1B32-500Z-A93 |
| MDB1B40-25Z-M9BW | MDB1B40-25Z-A93 |
| MDB1B40-50Z-M9BW | MDB1B40-50Z-A93 |
| MDB1B40-75Z-M9BW | MDB1B40-75Z-A93 |
| MDB1B40-100Z-M9BW | MDB1B40-100Z-A93 |
| MDB1B40-125Z-M9BW | MDB1B40-125Z-A93 |
| MDB1B40-150Z-M9BW | MDB1B40-150Z-A93 |
| MDB1B40-175Z-M9BW | MDB1B40-175Z-A93 |
| MDB1B40-200Z-M9BW | MDB1B40-200Z-A93 |
| MDB1B40-250Z-M9BW | MDB1B40-250Z-A93 |
| MDB1B40-300Z-M9BW | MDB1B40-300Z-A93 |
| MDB1B40-350Z-M9BW | MDB1B40-350Z-A93 |
| MDB1B40-400Z-M9BW | MDB1B40-400Z-A93 |
| MDB1B40-450Z-M9BW | MDB1B40-450Z-A93 |
| MDB1B40-500Z-M9BW | MDB1B40-500Z-A93 |
| MDB1B50-25Z-M9BW | MDB1B50-25Z-A93 |
| MDB1B50-50Z-M9BW | MDB1B50-50Z-A93 |
| MDB1B50-75Z-M9BW | MDB1B50-75Z-A93 |
| MDB1B50-100Z-M9BW | MDB1B50-100Z-A93 |
| MDB1B50-125Z-M9BW | MDB1B50-125Z-A93 |
| MDB1B50-150Z-M9BW | MDB1B50-150Z-A93 |
| MDB1B50-175Z-M9BW | MDB1B50-175Z-A93 |
| MDB1B50-200Z-M9BW | MDB1B50-200Z-A93 |
| MDB1B50-250Z-M9BW | MDB1B50-250Z-A93 |
| MDB1B50-300Z-M9BW | MDB1B50-300Z-A93 |
| MDB1B50-350Z-M9BW | MDB1B50-350Z-A93 |
| MDB1B50-400Z-M9BW | MDB1B50-400Z-A93 |
| MDB1B50-450Z-M9BW | MDB1B50-450Z-A93 |
| MDB1B50-500Z-M9BW | MDB1B50-500Z-A93 |
| MDB1B50-600Z-M9BW | MDB1B50-600Z-A93 |
| MDB1B63-25Z-M9BW | MDB1B63-25Z-A93 |
| MDB1B63-50Z-M9BW | MDB1B63-50Z-A93 |
| MDB1B63-75Z-M9BW | MDB1B63-75Z-A93 |
| MDB1B63-100Z-M9BW | MDB1B63-100Z-A93 |
| MDB1B63-125Z-M9BW | MDB1B63-125Z-A93 |
| MDB1B63-150Z-M9BW | MDB1B63-150Z-A93 |
| MDB1B63-175Z-M9BW | MDB1B63-175Z-A93 |
| MDB1B63-200Z-M9BW | MDB1B63-200Z-A93 |
| MDB1B63-250Z-M9BW | MDB1B63-250Z-A93 |
| MDB1B63-300Z-M9BW | MDB1B63-300Z-A93 |
| MDB1B63-350Z-M9BW | MDB1B63-350Z-A93 |
| MDB1B63-400Z-M9BW | MDB1B63-400Z-A93 |
| MDB1B63-450Z-M9BW | MDB1B63-450Z-A93 |
| MDB1B63-500Z-M9BW | MDB1B63-500Z-A93 |
| MDB1B63-600Z-M9BW | MDB1B63-600Z-A93 |
| MDB1B80-25Z-M9BW | MDB1B80-25Z-A93 |
| MDB1B80-50Z-M9BW | MDB1B80-50Z-A93 |
| MDB1B80-75Z-M9BW | MDB1B80-75Z-A93 |
| MDB1B80-100Z-M9BW | MDB1B80-100Z-A93 |
| MDB1B80-125Z-M9BW | MDB1B80-125Z-A93 |
| MDB1B80-150Z-M9BW | MDB1B80-150Z-A93 |
| MDB1B80-175Z-M9BW | MDB1B80-175Z-A93 |
| MDB1B80-200Z-M9BW | MDB1B80-200Z-A93 |
| MDB1B80-250Z-M9BW | MDB1B80-250Z-A93 |
| MDB1B80-300Z-M9BW | MDB1B80-300Z-A93 |
| MDB1B80-350Z-M9BW | MDB1B80-350Z-A93 |
| MDB1B80-400Z-M9BW | MDB1B80-400Z-A93 |
| MDB1B80-450Z-M9BW | MDB1B80-450Z-A93 |
| MDB1B80-500Z-M9BW | MDB1B80-500Z-A93 |
| MDB1B80-600Z-M9BW | MDB1B80-600Z-A93 |
| MDB1B80-700Z-M9BW | MDB1B80-700Z-A93 |
| MDB1B80-800Z-M9BW | MDB1B80-800Z-A93 |
| MDB1B100-25Z-M9BW | MDB1B100-25Z-A93 |
| MDB1B100-50Z-M9BW | MDB1B100-50Z-A93 |
| MDB1B100-75Z-M9BW | MDB1B100-75Z-A93 |
| MDB1B100-100Z-M9BW | MDB1B100-100Z-A93 |
| MDB1B100-125Z-M9BW | MDB1B100-125Z-A93 |
| MDB1B100-150Z-M9BW | MDB1B100-150Z-A93 |
| MDB1B100-175Z-M9BW | MDB1B100-175Z-A93 |
| MDB1B100-200Z-M9BW | MDB1B100-200Z-A93 |
| MDB1B100-250Z-M9BW | MDB1B100-250Z-A93 |
| MDB1B100-300Z-M9BW | MDB1B100-300Z-A93 |
| MDB1B100-350Z-M9BW | MDB1B100-350Z-A93 |
| MDB1B100-400Z-M9BW | MDB1B100-400Z-A93 |
| MDB1B100-450Z-M9BW | MDB1B100-450Z-A93 |
| MDB1B100-500Z-M9BW | MDB1B100-500Z-A93 |
| MDB1B100-600Z-M9BW | MDB1B100-600Z-A93 |
| MDB1B100-700Z-M9BW | MDB1B100-700Z-A93 |
| MDB1B100-800Z-M9BW | MDB1B100-800Z-A93 |
| MDB1B125-25Z-M9BW | MDB1B125-25Z-A93 |
| MDB1B125-50Z-M9BW | MDB1B125-50Z-A93 |
| MDB1B125-75Z-M9BW | MDB1B125-75Z-A93 |
| MDB1B125-100Z-M9BW | MDB1B125-100Z-A93 |
| MDB1B125-125Z-M9BW | MDB1B125-125Z-A93 |
| MDB1B125-150Z-M9BW | MDB1B125-150Z-A93 |
| MDB1B125-175Z-M9BW | MDB1B125-175Z-A93 |
| MDB1B125-200Z-M9BW | MDB1B125-200Z-A93 |
| MDB1B125-250Z-M9BW | MDB1B125-250Z-A93 |
| MDB1B125-300Z-M9BW | MDB1B125-300Z-A93 |
| MDB1B125-350Z-M9BW | MDB1B125-350Z-A93 |
| MDB1B125-400Z-M9BW | MDB1B125-400Z-A93 |
| MDB1B125-450Z-M9BW | MDB1B125-450Z-A93 |
| MDB1B125-500Z-M9BW | MDB1B125-500Z-A93 |
| MDB1B125-600Z-M9BW | MDB1B125-600Z-A93 |
| MDB1B125-700Z-M9BW | MDB1B125-700Z-A93 |
| MDB1B125-800Z-M9BW | MDB1B125-800Z-A93 |
| MDB1B125-1000Z-M9BW | MDB1B125-1000Z-A93 |


