This machine is ideal for overlocking and sewing together mattress quilts and hand-pulled fabrics. It features a double air cylinder, adjustable presser foot pressure, and stepless speed control. Perfect for various fabric types and thicknesses.
Model | KB1 | KB1A | KB4 | KB4A |
Max Sewing Thickness | 50mm | 60mm | 70mm | 80mm |
Sewing Head Type | JUKI 6800 | PEGASUS | JUKI 6900 | PEGASUS |
Press Foot Lift | 15mm | 12mm | 15mm | 15mm |
Needle Type | DC*27 | TV*64 130/21 | DO*21# | DP*21# |
Flanging Width | 23mm | 25mm | 27mm | |
Number of Sewing Threads | 5 thread | 4 thread | 5 thread | |
Max Sewing Speed | 3000rpm | 4000rpm | ||
Sewing Stitch | 1-5mm | |||
Needle Bar Type | Double bar | |||
Motor Power | 0.56kw | 0.75kw | ||
Air Pressure | 0.4-0.8 MPa |



This advanced overlock sewing machine is designed for high-performance applications in the textile industry. With its versatile functionality, it can efficiently handle a wide range of materials, from lightweight fabrics to thick mattress quilts. The machine's durability and precision make it an essential tool for manufacturers looking to streamline their production process while maintaining quality. Whether you're working on custom orders or mass production, this model offers reliable performance and ease of use. For more details or assistance with selection, don't hesitate to reach out.
Hollow anchor bar means a rod that transfers the structures or geotechnical load to a stable rock formations, anchor bolt consists of rod, drill bit, coupling, plate, grouting stopper and nut. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It`s irreplaceable in narrow construction environment. Hollow anchor bar is made of seamless tube with high strength.
Advantages and Characteristics :
1.No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.
2.Fast drilling and installation, because drilling, installation and grouting are in a single operation.
3.Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.
4.The hollow core not only serves for flushing during drilling, but also for grouting after drilling.
5.Continuous threads ensure the bars can be cut and coupled at any point, or extended.
6.Different anchor bits are available for different ground conditions.
7.Duplex anti-crossin process, hot-dip galvanized and epoxy coating system.
Anchor Bolt,Anchor Rod,Hollow Anchor Bars,Hollow Grab Bar Anchor
Tianjin YF Steel Co., Ltd , https://www.youfametal.com