Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75 is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm bore, a 500mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 425–500mm. Adjustable air cushion (both ends).
- BoreØ50 mm
- Stroke500 mm
- Adjustable425–500 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75
The AirTAC MBLCJ50X500-75 is a compact, double-acting mini round cylinder engineered for heavy-duty positioning within tight assembly spaces. It features a rear travel stopper that trims up to 75 mm of travel, creating a precise 425 to 500 mm usable end-position window. Driven by a Ø16 mm hard-chrome carbon steel rod, it delivers 981 N of push force and 881 N of pull force at 0.5 MPa, making it well-suited for moving substantial jigs or heavy pallets over long 500 mm distances.
Unlike the base MBLJ which relies on a fixed rubber bumper, this MBLCJ variant integrates a screw-tunable adjustable air cushion at both ends to decelerate fast-moving loads and protect the end covers. The riveted rolling-packed aluminum barrel utilizes a heterogeneous two-way grease-retaining piston seal to maintain lubrication across millions of cycles. Because this specific SKU lacks the -S magnet suffix, it cannot support CMSG, DMSG, or EMSG electronic position sensing.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 500 mm |
| Adjustable window | 425–500 mm (trim 75 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 50 | Bore size in mm. |
| ×500 | Nominal stroke length in mm. |
| -75 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75 Is Used
Automated Welding Torch Positioning
Moves a heavy MIG welding torch carriage along a 425 to 500 mm window, using the tunable air cushion to softly stop the heavy arm without jarring the weld seam alignment.
Pallet Transfer Ejection
Ejects loaded 981 N-capacity pallets from a packaging conveyor, utilizing the long 500 mm stroke and rear stopper to ensure the pallet clears the cell boundary before the retraction signal.
Stamping Feeder Alignment
Pushes heavy coil steel blanks into a mechanical stamping press die, relying on the 881 N pull force to retract the feeder arm and the adjustable end cushions to survive high-speed 800 mm/s cycling.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75 the Right Cylinder?
Selecting this 50 mm bore provides 981 N of thrust at 0.5 MPa, bridging the gap between the 32 mm bore (402 N push) and the larger 63 mm bore (1558 N push). If your payload requires less force, step down to the 32 mm option; if you need to move heavier structural frames, step up to the 63 mm variant. The MBLCJ is preferred over the MBLJ when your cycle times demand aggressive end-of-stroke deceleration rather than a simple fixed bumper, and over the MBLC when you need to fine-tune the exact end position within that 425 to 500 mm window.
Keep in mind the rear adjuster is strictly a travel stop, not a mechanical lock, and the air cushion only decelerates velocity—neither will hold a load in place without continuous live air pressure. Mounting is restricted to Basic, FA flange, or LB foot styles, as this series omits SDB pivot and back-cover options. For a drop-in replacement, match the 50 mm bore, 500 mm stroke, 75 mm adjust code, G1/4 port, PT thread, and no-magnet configuration. Because the stroke is 500 mm on a 16 mm rod, external guide rails are highly recommended to prevent rod bending and premature seal wear under side loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ 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 Set the rear stopper for the end position (a travel stop, not a lock).
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ50X500-75 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa, with a proof pressure rated at 1.5 MPa.
This specific SKU lacks the -S suffix, meaning it has no built-in magnet and cannot accept CMSG, DMSG, or EMSG sensors. Additionally, the 75 mm rear adjuster is a travel stop that sets the end position, not a lock; the air cushion only decelerates the motion. Neither feature will hold a load statically without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Adjustable-Stroke Cylinders
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