SPEEDWAY 4039 Looper for Industrial Blindstitch Blind Hemmer Machines - Genuine Original Taiwan Part for SW-101, SW 500e, Consew 75T, CM-101 & Chandler 101

The looper (part #4039) is the part that actually makes the stitch on a blindstitch blind hemmer. As the curved needle passes through the fold of the fabric, the looper swings across and picks up the needle loop to form the single-thread chainstitch that holds an invisible hem. Every stitch the machine makes passes across this one component, which makes it a wear part: once the point dulls or the loop-taking surface wears, the machine starts skipping stitches, dropping the chain, or leaving an uneven hem — symptoms operators often chase through tension and needle depth before realizing the looper is the cause.

This is a genuine original SPEEDWAY part, manufactured in Taiwan — not a generic aftermarket copy. Part #4039 is the standard looper across the entire 101-class blindstitch platform, so it drops directly into a wide range of portable and industrial blind hemmers from multiple brands without modification.

Machine Compatibility — Available at Supra Sewing

• SPEEDWAY SW-101 — Industrial blindstitch blind hemmer with convertible swing arm
• SPEEDWAY SW 500e — Portable blindstitch blind hemmer
• CONSEW CM-101-1 — Single needle industrial blindstitch machine

Speedway Machine Compatibility

• SPEEDWAY SW-101
• SPEEDWAY SW 500e

Other Compatible Brands

• CONSEW — 75T, CM-101, CM-101-1, 221, 222, 250, 251
• CHANDLER — CM101 (101)
• TREASURE — BS-100, BS-101
• TONY — H101M
• LEWIS — C17
• YAMATA — CM-500
• ZOJE — ZJ-500

Cross-Reference Part Numbers

• 4039
• 101M
• CM500
• BS101 looper

Technical Specifications

Ideal For

• Correcting skipped stitches and dropped chain on a blindstitch hemmer
• Scheduled preventive maintenance on production blind hemmers
• Alteration shops and tailoring workrooms running daily hemming
• Drapery and curtain workrooms hemming long panel runs
• Dry cleaners and garment repair counters offering same-day hemming
• Keeping a spare on the shelf so a hemming station never goes down mid-order

⚠️ Compatibility Notice: Always verify your machine model and subclass number before ordering. Part numbers and compatibility are provided as a reference only. Supra Sewing is not responsible for purchases made without confirming compatibility with your specific machine. All sales on replacement parts are final.