Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X350 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 350mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 528 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ40 mm
- Stroke350 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- CushionFixed rubber bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350
The AirTAC MBLD40X350 is a double-acting, double-rod aluminum mini cylinder featuring a 40 mm bore and a 350 mm stroke. Because a rod exits both ends, the annulus area is identical on both sides, yielding 528 N of force at 0.5 MPa for both extend and retract. This symmetry is ideal for driving a primary workpiece on the front rod while synchronously moving a secondary cam or position flag on the rear rod. The riveted rolling-packed barrel and 20 um hard-chrome carbon-steel rod provide durable service in compact spaces.
This 350 mm stroke configuration uses a fixed rubber bumper to soften end-of-travel impacts rather than an adjustable air cushion (which requires the MBLCD variant). Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG electronic position sensing. Furthermore, because the overall length equals the base body length plus twice the stroke, the rear rod requires substantial clearance clearance to avoid collision during full extension.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 | Fixed rubber bumper |
| Max standard stroke | Up to 500 mm |
Double-rod overall length = A + 2 × stroke — leave clearance for the rear rod. MBLD/MBLCD mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Output Force (Ø40mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
A rod on both piston faces makes the annulus area equal, so extend and retract force (and speed) are the same. Actual usable force is lower due to friction.
Model Code: Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
| FA / LB | Mounting: FA flange or LB foot (no SDB on double-rod). |
Related: MBLCD (double rod, adjustable cushion), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350 Is Used
Textile Loom Tentering
Uses the 528 N equal both-way force to stretch and guide fabric widths on a weaving loom, mounting the primary clamp on one rod end and a tension-limiting flag on the rear rod.
PCB Edge Trimmer Feed
Synchronizes dual-side routing pins across a 350 mm travel to feed fiberglass panels into a depaneling router, relying on the twin rods to prevent workpiece yaw during retraction.
Packaging Flap Folder
Drives a folding blade 350 mm into a carton erector stream, utilizing the rear rod end to mechanically trip a mechanical valve at mid-stroke without adding external sensors.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350 the Right Cylinder?
When sizing this 40 mm bore, stepping down to the 32 mm bore reduces your equal both-way force to 346 N at 0.5 MPa, while stepping up to the 50 mm bore increases it to 881 N. If your application requires adjustable pneumatic cushioning rather than fixed rubber bumpers, select the MBLCD double-rod series instead. Mounting options for this body are limited to Basic, FA flange, or LB foot brackets; there is no SDB pivot bracket or back-cover mounting option available.
For replacements, verify the 40 mm bore, 350 mm stroke, G1/4 porting, and default PT tapered thread. Because this unit lacks the -S code, no position sensor is fitted. At 350 mm of stroke, the 16 mm rod is highly susceptible to side-load bending; an external guide rail is strongly recommended to prevent premature seal wear and rod damage.
Quick checklist
- ✓ Equal force both ways at your pressure
- ✓ Rear-rod clearance (length = A + 2 × stroke)
- ✓ Mounting: Basic / FA / LB only
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rear rod (length = A + 2 × stroke).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350 FAQ
Because the MBLD40X350 is a double-rod cylinder, the force is identical in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum theoretical 108 kgf at 1.0 MPa.
No, this specific SKU lacks the -S code, meaning no built-in magnet is fitted and it cannot accept CMSG, DMSG, or EMSG switches. The rear rod can instead be used to physically trigger external mechanical limit switches.
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