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Product Description
The Juki MO-50E is a cost-effective serger sewing machine that brings Juki’s industrial machine expertise into a compact, user-friendly design. This serger is equipped with three or four threads and lay-in tensions, ensuring strong and dependable serging. It includes features such as an adjustable, calibrated knife adjustment, differential feed, integrated rolled hem, and an easy-to-thread bottom looper threader. The MO-50E is designed to provide high-quality serging at an affordable price, making it an excellent choice for both beginners and experienced sewists.
Basic Information About Juki MO-50E Serger Sewing Machine

- Model: Juki MO-50E
- Type: Serger Sewing Machine
- Manufacturer: Juki (Made in Japan)
- Weight: Approximately 7 kg
- Power: 110V
- Warranty: 3-year “door-to-door” warranty
Key Features Of the Juki MO-50E Serger Sewing Machine

Advanced Sewing Capabilities
- Three or Four Threads: Offers versatility in stitching options, allowing for strong and durable seams.
- Automatic Lower Looper Threading: Simplifies the threading process; just raise the Lower Looper Threader, and the thread continues on its own.
- Automatic Rolled Hemming: Easily switch between overlock stitching and rolled hemming without changing the presser foot or stitch plate.
- Adjustable Differential Feed: Allows you to work with a wide range of fabrics, from stretchy to crinkly, with an external dial to modify the feed ratio from 0.8 to 2.0.
- Stitch Length Adjustment: Adjustable from 1 to 4 mm, providing the ideal stitch length for every project.
- Retractable Upper Knife: Makes threading safer and simpler by retracting the knife.
User-Friendly Design
- Lay-in Thread Tension Slots: Simplifies threading with color-coded thread paths.
- LED Sewing Light: Provides bright illumination, making it easier to see your work and tools.
- Waste Collector: Collects ripped fabric and helps maintain a tidy workspace.
- Snap-On Presser Feet: Allows for quick and easy presser foot changes.
Performance and Efficiency
- High Sewing Speed: Capable of sewing up to 1,300 stitches per minute, increasing productivity.
- Complete Needle Puncture Power: Ensures steady and full needle force regardless of sewing speed.
- Generous Area Beneath the Presser Foot: Provides ample space for sewing large, thick fabrics (up to 6.0 mm).

Accessories
- Presser Feet: Standard presser foot suitable for all stitches.
- Tweezers: For easy threading.
- Screwdrivers: For maintenance and adjustments.
- Thread Nets: Four included to prevent thread tangling.
- Upper Knife: Spare knife included.
- Lint Brush: For cleaning the machine.
- Oiler: For lubrication.
- Needles: A pair of ELX705 needles.
- Hexagon Wrench: For adjustments.
- Waste Collector: For collecting fabric trimmings.
Juki MO-50E: Performance
The Juki MO-50E excels at providing high-quality overlock stitches on a variety of fabrics. Its advanced features, such as the differential feed and automatic rolled hemming, ensure consistent stitch quality and prevent fabric puckering or stretching. The machine operates smoothly and quietly, even at high speeds, making it suitable for both home and professional use.

Stitch Quality
- Consistent Seam Quality: The differential feed mechanism ensures well-tensed seams without pitch errors.
- Versatile Stitch Options: Offers six different stitch types, including 3-thread rolled hem, 4-thread overlock, and 3-thread flatlock.
Ease of Use
- User-Friendly Interface: The machine’s design includes features like an easy-to-thread lower looper and color-coded thread paths for enhanced operability.
- Quick Presser Foot Changes: Snap-on feet make it easy to switch presser feet for different tasks.
Included Accessories of the Juki MO-50E Serger Sewing Machine
The Juki MO-50E serger sewing machine is designed to provide high-quality serging with a range of features that make it user-friendly and efficient. Here is a detailed list of the included accessories that come with the Juki MO-50E:

Presser Feet
- Standard Presser Foot: Suitable for all stitches, including overlock and rolled hem stitches.
Threading and Maintenance Tools
- Tweezers: For easy threading of the machine.
- Screwdrivers: For maintenance and adjustments.
- Thread Nets: Four included to prevent thread tangling.
- Upper Knife: Spare knife included for cutting fabric.
- Lint Brush: For cleaning the machine and removing lint.
- Oiler: For lubricating the machine to ensure smooth operation.
- Needles: A pair of ELX705 needles for various fabric types.
- Hexagon Wrench: For adjustments and maintenance.
Additional Components
- Waste Collector: Collects fabric trimmings and helps maintain a tidy workspace.
- Four Thread Stripping Discs: Helps in maintaining thread tension and preventing tangling.
Documentation
- Instruction Manual: Detailed guide for operating the machine, including threading, maintenance, and troubleshooting.
Specifications of the Juki MO-50E Serger Sewing Machine
Specification | Details |
---|---|
Model | Juki MO-50E |
Type | Serger Sewing Machine |
Manufacturer | Juki (Made in Japan) |
Weight | Approximately 7 kg |
Power | 110V |
Warranty | 3-year “door to door” warranty |
Threads | 3 or 4 threads |
Needle Type | ELX705 |
Maximum Sewing Speed | 1,300 stitches per minute |
Stitch Length | 1-4 mm |
Differential Feed Ratio | 0.8 to 2.0 |
Overlock Width | 2 mm (roll hem), 6 mm (left needle), 6 mm (right needle) |
Presser Foot Lift | 6 mm |
Dimensions | (H) 290 mm x (W) 292 mm x (D) 295 mm |
Automatic Lower Looper Threading | Yes |
Automatic Rolled Hemming | Yes |
Adjustable Differential Feed | Yes |
Retractable Upper Knife | Yes |
Lay-in Thread Tension Slots | Yes |
LED Sewing Light | Yes |
Waste Collector | Yes |
Tips for Lubricating the Juki MO-50E Serger Sewing Machine

1. Gather Necessary Supplies
Before you start, make sure you have the following items:
- Juki New Defrix Oil No. 2Â (equivalent to ISO VG32)
- Lint brush
- Soft cloth
- Screwdriver (if needed to access certain parts)
2. Turn Off and Unplug the Machine
Safety first! Ensure the sewing machine is turned off and unplugged from the power source to prevent any accidents.
3. Clean the Machine
- Remove Lint and Dust: Use a lint brush to clean out any lint, dust, or fabric scraps from the bobbin area, feed dogs, and other accessible parts. This ensures that the oil can reach the necessary components without obstruction.
- Wipe Down the Exterior: Use a soft cloth to wipe down the exterior of the machine, removing any dust or residue.
4. Locate the Lubrication Points
Refer to the Juki MO-50E user manual to identify the specific points that require lubrication. Common areas include:
- Hook and Bobbin Area: The lower looper and other moving parts in the bobbin area.
- Needle Bar: The area where the needle bar moves up and down.
- Presser Foot Bar: The area where the presser foot bar moves.
- Moving Parts Inside the Machine: accessible by removing the machine’s cover.
5. Apply Sewing Machine Oil
- Use Sparingly: Apply a drop or two of Juki New Defrix Oil No. 2 to each lubrication point. Avoid over-oiling, as excess oil can attract dust and lint.
- Hook and Bobbin Area: Place a drop of oil on the hook race where the bobbin case sits. Rotate the handwheel to distribute the oil evenly.
- Needle Bar and Presser Foot Bar: Apply a drop of oil to the needle bar and presser foot bar. Move the needle up and down to ensure the oil spreads evenly.
- Internal Moving Parts: If you have access to the internal moving parts, apply a drop of oil to each point as specified in the manual.
6. Reassemble the Machine
If you had to remove any covers or parts to access the lubrication points, carefully reassemble the machine. Ensure all screws are tightened securely.
7. Run the Machine
- Test Run: Plug the machine back in and turn it on. Run the machine at a slow speed for a few minutes to allow the oil to distribute evenly across the moving parts.
- Check for Excess Oil: After running the machine, check for any excess oil that may have seeped out. Wipe it away with a soft cloth to prevent it from staining your fabric.
8. Regular Maintenance Schedule
- Frequency: Lubricate your Juki MO-50E sewing machine regularly, depending on how often you use it. For frequent use, lubricate every few months. For occasional use, lubricate every six months.
- Professional Servicing: Consider taking your machine for professional servicing once a year to ensure it remains in optimal condition.
Pros and Cons of the Juki MO-50E Serger Sewing Machine
Pros
Performance and Capabilities
- High Sewing Speed: Capable of sewing up to 1,300 stitches per minute, significantly increasing productivity.
- Versatile Stitch Options: Offers three or four threads for various stitching options, including overlock and rolled hem stitches.
- Consistent Seam Quality: The differential feed mechanism ensures well-tensed seams without pitch errors, making it suitable for a wide range of fabrics, from stretchy to crinkly.
- Automatic Features: Includes automatic lower looper threading and automatic rolled hemming, simplifying the threading process and switching between stitch types without changing the presser foot or stitch plate.
User-Friendly Design
- Lay-in Thread Tension Slots: Simplifies threading with color-coded thread paths, making it easy to follow and set up.
- LED Sewing Light: Provides bright illumination, making it easier to see your work and tools.
- Waste Collector: Collects fabric trimmings and helps maintain a tidy workspace.
- Snap-On Presser Feet: Allows for quick and easy presser foot changes, enhancing convenience.
Adjustability
- Adjustable Differential Feed: External dial allows you to modify the feed ratio from 0.8 to 2.0, providing control over fabric handling and preventing stretching or puckering.
- Stitch Length Adjustment: Adjustable from 1 to 4 mm, allowing you to customize the stitch length for different projects.
- Retractable Upper Knife: Makes threading safer and simpler by retracting the knife when not needed.
Durability and Reliability
- Robust Construction: Built with Juki’s industrial machine expertise, ensuring strong and dependable serging.
- Complete Needle Puncture Power: Ensures steady and full needle force regardless of sewing speed.
Cons
- Higher Initial Investment: While the Juki MO-50E is cost-effective compared to other industrial machines, it may still be more expensive than some entry-level sergers, which could be a consideration for budget-conscious buyers.
- Learning Curve: As with many sergers, there may be a learning curve for beginners, particularly in mastering threading and tension adjustments.
- Limited to Serging: Designed specifically for overlock stitching, which may limit its versatility for users who need a machine capable of multiple stitch types.
- Weight: Weighs approximately 7 kg, making it less portable compared to lighter, more compact sergers. It is designed for a dedicated sewing space rather than frequent transport.

Conclusion
The Juki MO-50E serger sewing machine offers numerous advantages, including high sewing speed, versatile stitch options, consistent seam quality, and user-friendly features like automatic threading and adjustable differential feed. Its robust construction and advanced capabilities make it a reliable choice for both beginners and experienced sewists. However, the higher cost, complexity, and specialization may be considerations for some users. Overall, the Juki MO-50E is an excellent investment for those needing a powerful and durable machine for high-quality serging tasks.
FAQs About the Juki MO-50E Serger Sewing Machine
1. What is the Juki MO-50E serger sewing machine?
The Juki MO-50E is a cost-effective serger sewing machine designed for high-quality overlock stitching. It features three or four threads and lay-in tensions, making it suitable for a variety of sewing projects. The machine incorporates Juki’s industrial machine expertise into a compact, user-friendly design.
2. Where is the Juki MO-50E manufactured?
The Juki MO-50E is manufactured in Japan by Juki, a global leader in sewing quality and technology.
3. What types of stitches can the Juki MO-50E perform?
The Juki MO-50E can perform several types of stitches, including:
- 3-thread rolled hem
- 4-thread overlock
- 3-thread flatlock
- 3-thread narrow overlock (hemstitch)
- 3-thread overlock stitch
4. What is the maximum sewing speed of the Juki MO-50E?
The Juki MO-50E can sew at a maximum speed of 1,300 stitches per minute.
5. Does the Juki MO-50E have differential feed?
Yes, the Juki MO-50E is equipped with an adjustable differential feed, allowing you to work with a wide range of fabrics, from stretchy to crinkly. The feed ratio can be modified from 0.8 to 2.0 using an external dial.
6. What is the maximum stitch length of the Juki MO-50E?
The maximum stitch length of the Juki MO-50E is adjustable from 1 to 4 mm.
7. Does the Juki MO-50E have an automatic lower looper threader?
Yes, the Juki MO-50E features an automatic lower looper threader, making the threading process quick and easy.
8. Can the Juki MO-50E perform rolled hemming?
Yes, the Juki MO-50E has an integrated rolled hemming feature that allows you to switch between overlock stitching and rolled hemming without changing the presser foot or stitch plate.
9. How is the Juki MO-50E lubricated?
The Juki MO-50E requires regular lubrication with Juki New Defrix Oil No. 2 (equivalent to ISO VG32) to ensure smooth operation and longevity. Refer to the user manual for specific lubrication points.
10. Does the Juki MO-50E come with a warranty?
Yes, the Juki MO-50E comes with a 3-year “door to door” warranty, covering parts and components.
11. What accessories are included with the Juki MO-50E?
The Juki MO-50E comes with a comprehensive set of accessories, including:
- Standard presser foot
- Tweezers
- Screwdrivers
- Thread nets (four included)
- Upper knife (spare knife included)
- Lint brush
- Oiler
- Needles (a pair of ELX705 needles)
- Hexagon wrench
- Waste collector
12. Is the Juki MO-50E suitable for beginners?
Yes, the Juki MO-50E is designed to be user-friendly and is suitable for both beginners and experienced sewists. Features like automatic lower looper threading, color-coded thread paths, and adjustable differential feed make it easy to use.
13. How noisy is the Juki MO-50E?
The Juki MO-50E operates relatively quietly, making it suitable for home use. However, as with any serger, some noise is expected, especially at higher speeds.
14. Where can I buy the Juki MO-50E serger sewing machine?
The Juki MO-50E can be purchased from authorized Juki dealers, online retailers, and specialty sewing stores. It is recommended to buy from reputable sources to ensure you receive the full warranty and customer support.
15. What is the warranty on the Juki MO-50E?
The Juki MO-50E comes with a 3-year “door-to-door” warranty, covering parts and components.
All Used Image Credit : Juki.Co.Jp
Check all article List - Best Sewing Machine | Review of All Sewing Machine | Sewing Tips | Textile | Accessories | How to