Elastic Band Processing Machine (Double-Head)
Elastic Band Processing Machine (Double-Head)
The SAKGO SK-1730 is a fully automated double-head elastic band processing machine that doubles production efficiency by processing two elastic rings simultaneously. Covering widths of 1–8 cm and lengths of 20–110 cm, it features ultrasonic elastic cutting and sealing before sewing, delivering 150–225 pieces per hour with a flat, clean join interface on every finished ring.
Code
SK-1730
Sewing Range
1 – 8 cm
Max Speed
20 – 110 cm
Capacity
150 – 225 pcs / hr
Air Pressure
>4 Bar
Needle Pitch
DP*17 (#11–16)
Key Features
1. Double-Head Design — Doubled Efficiency Two sewing heads operate simultaneously, processing two elastic rings per cycle. This directly doubles output compared to single-head machines — reducing the number of machines, floor space, and operators required to meet the same production target.
2. Ultrasonic Cutting & Sealing Before Sewing The SK-1730 uses ultrasonic technology to cut and heat-seal the elastic band end before the sewing step. This eliminates fraying at the cut point and creates a flat, bonded surface — producing a cleaner, flatter join than knife-cut systems. The bartack stitch then reinforces the join for long-term durability.
3. Wide Elastic Range (1–8 cm width, 20–110 cm length) With a wider elastic width range than the SK-1430 (up to 8 cm vs 5 cm), the SK-1730 covers narrow legbands, standard waistbands, and wide waistbands in a single machine — making it suitable for a broader range of garment types and styles.
4. Bartack Reinforcement Stitching After ultrasonic sealing, the machine applies a bartack stitch at the join point for additional strength. This combination of ultrasonic bonding and bartack stitching produces one of the most durable elastic ring joins available — resistant to repeated stretching, pulling, and industrial laundering.
5. Imported SMC Electrical Components All electrical accessories use imported SMC components, delivering faster operating cycles, superior stability, and extended machine lifespan compared to standard alternatives.
6. 2500 RPM High-Speed Double-Head Operation At 2500 RPM across two simultaneous heads, the SK-1730 produces 150–225 finished elastic rings per hour — with consistent quality maintained across both heads throughout the production run.
7. DP*17 Needle (#11–16) Uses the industry-standard DP*17 needle in sizes #11 through #16, compatible with the full range of elastic materials and thicknesses within the machine’s width specification.
8. Large Machine Format With a footprint of 210 × 120 × 160 cm, the SK-1730 is a full industrial-scale machine designed for dedicated elastic band processing stations in high-volume production environments.
9. CE & ROHS Certified Meets European CE and ROHS certification standards — suitable for export-oriented factories supplying global apparel and underwear brands.
Product Inquiry
Common Questions
Frequently Asked Questions
Everything you need to know about SAKGO’s T-shirt and polo shirt
automation machines before making a purchasing decision.
The SK-1730 has two sewing heads operating simultaneously, doubling output per machine. It also uses ultrasonic cutting and sealing before sewing — producing a flatter, cleaner join than the Dragon Gate Knife cutting used in the SK-1430. The SK-1730 also covers a wider elastic width range (up to 8 cm vs 5 cm). Choose the SK-1730 for higher volume requirements or where join flatness and wide elastic compatibility are priorities.
The machine processes elastic widths from 1 cm to 8 cm and lengths from 20 cm to 110 cm — covering narrow legbands, standard underwear waistbands, and wide waistbands for outerwear and sportswear.
Ultrasonic cutting uses high-frequency vibration to simultaneously cut and heat-seal the elastic end. This prevents fraying at the cut point and creates a smooth, flat bonded surface before the stitch join is made. Knife cutting (used in the SK-1430) makes a clean mechanical cut but does not seal the end. The ultrasonic method produces a flatter, neater join interface — particularly important for premium underwear and branded garments where join appearance matters.
A bartack is a dense reinforcement stitch applied at the join point after the ultrasonic seal. It provides additional mechanical strength at the most stressed point of the elastic ring — the join — ensuring long-term durability through repeated stretching and washing.
The SK-1730 produces 150–225 finished elastic rings per hour across both heads combined at 2500 RPM. Actual output depends on the elastic length setting and material.
The SK-1730 uses a DP*17 needle in sizes #11 through #16. The appropriate size depends on the elastic width and material. Replacement needles are available through SAKGO's global spare parts supply.