SPEEDWAY SW6-5D 2-Needle 5-Thread True Safety Stitch Direct Drive Overlock Industrial Sewing Machine for Wovens, Denim & Workwear - Complete Setup, Fully Submerged Table Included

The SPEEDWAY SW6-5D is a 2-needle 5-thread true safety stitch direct drive overlock industrial sewing machine engineered for woven garment construction — denim, jeans, workwear, uniforms, trousers, heavy shirts, and any application where a single seam must both join two layers and overedge them simultaneously. Built around a fully integrated direct drive servo motor, the SW6-5D delivers a max sewing speed of 6,500 sti/min with smooth variable speed control. Unlike 4-thread mock safety stitch overlocks (such as the SW6-4D), the SW6-5D produces a true safety stitch by combining a 2-thread chainstitch (ISO 401) with a 3-thread overlock (ISO 504) in a single pass — the chainstitch holds the seam together while the overlock simultaneously finishes the raw edge to the right of it. This produces a substantially stronger and more durable seam, which is why 5-thread safety stitch is the global industry standard for denim, jeans, and workwear assembly. Equivalent in configuration to the Jack E4S-5 (regular 5-thread), the SW6-5D shares the same Speedway SW6 Direct Drive platform with the SW6-3D, SW6-3D-32R, SW6-4D and SW6-6D. The DC×27 (#11-#14) needle system handles medium-to-heavy woven fabrics with industrial-weight threads. Complete with industrial fully submerged table and stand. What's Included SPEEDWAY SW6-5D Direct Drive 2-Needle 5-Thread Safety Stitch Overlock Machine Head (Ships Assembled) Integrated Direct Drive Servo Motor Industrial Fully Submerged Table & Stand Standard 5-Thread Safety Stitch Presser Foot Set DC×27 (#11-#14) Needles and Standard Bobbins Standard Accessories Kit Operator's Manual Key Features 2-needle 5-thread true safety stitch (ISO 401 chainstitch + ISO 504 overlock) — joins and overedges the seam in one operation, substantially stronger than 4-thread mock safety Industry-standard seam for denim, jeans, and workwear — globally the dominant assembly stitch for woven garment construction Direct drive integrated servo motor — quieter, more responsive, lower energy use vs belt-driven setups 6,500 sti/min max sewing speed — high-throughput woven garment production DC×27 (#11-#14) needle system — industrial standard, widely available across suppliers 5 mm overedging width — strong edge finishing on woven seams Stitch length adjustable up to 4.5 mm Bottom differential feed ratio 0.7 - 2 — clean control on dense wovens and stretch denim 5.5 mm max presser foot lift — accommodates multi-layer denim and workwear assemblies Automatic lubrication — long service life, minimal maintenance Balanced chainstitch + overlock looper take-up — uniform safety-stitch quality Ships complete with fully submerged industrial table and stand, ready to run Ideal For Denim and jeans manufacturing — true safety stitch side seams, inseams, yoke seams Workwear, uniforms, and industrial coveralls Trousers and pants — heavy wovens and twill Heavy shirts, chambray, and oxford cotton Outerwear seam construction Tents, sailcloth, and technical wovens Any garment where seam strength is critical — true safety stitch is required, mock safety is not enough Shops upgrading from 4-thread mock safety to true 5-thread construction Specifications Brand Speedway Model SW6-5D Machine Type 2-Needle Safety Stitch Overlock, Direct Drive Stitch Type 5-Thread True Safety Stitch (ISO 401 + ISO 504) Number of Needles 2 Number of Threads 5 Needle System DC×27 (#11-#14) Max Sewing Speed 6,500 sti/min Max Stitch Length 4.5 mm Overedging Width 5 mm Needle Gauge (Chain to Overlock) 6.4 mm Differential Feed Ratio 0.7 - 2 Max Presser Foot Lift 5.5 mm Feed Type Drop Feed Construction Flatbed Lubrication Automatic Motor Built-in Direct Drive Servo Motor Voltage 110V Head Dimensions 480 × 335 × 480 mm Net Weight 28 kg Gross Weight 35 kg Material Weight Range Medium to Heavy (wovens, denim, workwear) Table Type Fully Submerged Industrial Table Includes Complete Setup with Table and Stand Assembly Ships Assembled