When efficiency and professional-quality results matter, the Janome MyLock 634D delivers. Designed for sewists who want dependable performance and beautifully finished seams, this powerful serger offers 2-needle capability and flexible 2, 3, or 4-thread overlock stitching options to suit a wide range of projects.
Threading is simple and stress-free thanks to clearly marked, color-coded thread guides and an easy-access lower looper threading system. Spend less time setting up and more time sewing.
Switching to rolled hemming is fast and convenient—no need to change the needle plate. Whether you’re finishing garment seams, creating durable overlock edges, or adding decorative rolled hems, the MyLock 634D provides smooth, consistent stitching every time.
If you’re ready to elevate your sewing with polished, professional finishes, the Janome MyLock 634D is built to keep up with your creativity.
Top Features:
- 2, 3, or 4 thread serger
- Lay-in thread tension dial
- Threading chart
- Color coded thread guides
- Tension release device
- Easily accessible lower looper guides
- Changeable thread guide
- Quick change rolled hem
- Lower looper pretension setting slider
- Easily retractable upper knife
- Adjustable foot pressure
- Snap on presser feet
- Adjustable stitch length 1mm to 5mm
- Differential feed ratio 0.5 to 2.25
- Adjustable cutting width 3.1mm to 7.3mm
- Maximum speed 1,300 spm
- Waste chip box
Learn more about the Janome MyLock634D and other Janome sewing machines by visiting one of our locations. Janome is a strongly trusted brand known and loved by the Rocky Mountain Sewing and Vacuum community.
We are Colorado’s most trusted sewing machine experts, with stores located in the Denver-metro area, including Littleton, Aurora, Arvada and Colorado Springs. Our experts are happy to walk you through the specifics of this product. Find a location near you today!







