LS-6021/S/NP Automatic Drawcord Inserting Machine

LS-6021 / LS-6021S / LS-6021NP Automatic Drawcord Inserting Machine

LS-6021 / LS-6021S / LS-6021NP Automatic Drawcord Inserting Machine

This machine line automates the process of inserting a drawcord through waistband holes — flat button holes, bird’s-eye embroidery holes, and metal air holes — replacing manual cord insertion, which is labor-intensive and time-consuming. The line comes in three versions, differing mainly in control method (hand or foot) and level of digitization:

• LS-6021 (Classic) — foot control, mechanical/analog control panel.
• LS-6021S (Digital Upgrade) — foot control, upgraded digital control panel.
• LS-6021NP (Hand Control) — hand control, designed for standing operation, with built-in intelligent programming.

📌 A note on terminology: this equipment is sometimes labeled a “string thrusting machine” or “stringing machine” in supplier catalogues — avoid searching for it that way, since those terms are dominated by badminton/tennis racket-stringing equipment in English-language search. The correct, unambiguous term is drawcord inserting machine (or “drawcord insert machine”).

Application

All three versions handle drawcord insertion through 3 common waistband hole types:

• Flat button hole
• Bird’s-eye embroidery hole
• Metal air hole

Common applications include drawcord waistband garments such as sweatpants, joggers, shorts, and trousers with adjustable drawcords.

Comparing the 3 Versions: Which One Should You Choose?

📌 Since all three versions handle the same operation and share several core specs, factories should consult directly with the technical team to determine which version best fits: (1) budget, (2) existing operating habits at the factory (workers accustomed to pedal control vs. wanting to switch to hand/standing operation), and (3) how much real-time production monitoring is needed.

Technical Specifications

The LS-6021 (Classic) shares the same core mechanical platform as the LS-6021S, differing mainly in the control panel as noted above — confirm with your distributor if you need version-specific figures. Voltage and power are identical across versions; the main differences are in overall dimensions and weight, driven by the different control mechanisms (hand vs. foot).

Accessories & Consumables

Applies to all three versions.

Applicable Hole Types

Applies to all three versions.

The machine supports various drawcord/rope types depending on product requirements — it’s best to provide a sample of the specific cord your factory uses so the supplier can confirm compatibility before ordering.

Real-World Efficiency: Before and After Installation

The manufacturer reports the same efficiency figures across the whole line, not broken out by hand/foot control version.

Frequently Asked Questions

Is this the same as a racket “stringing machine”? No. This is an industrial garment automation machine that inserts a drawcord through waistband holes on trousers and shorts. It is unrelated to badminton/tennis racket stringing machines, which is what “stringing machine” most commonly refers to in general English search.

How is a drawcord inserting machine different from an elastic waistband threading machine? This machine inserts a drawcord (cord) through waistband holes — button holes, bird’s-eye holes, metal air holes. This is a different operation from attaching an elastic band into the waistband seam, which typically uses a dedicated elastic-attaching sewing machine.

Should I choose hand control (LS-6021NP) or foot control (LS-6021/6021S)? Foot control suits factories already accustomed to pedal operation, freeing the hands to handle fabric. The LS-6021NP hand-control version is designed for standing operation, suited to factories wanting quick, flexible handling, easy movement between stations, or where workers aren’t used to continuous pedal use.

LS-6021 (Classic) and LS-6021S (Digital Upgrade) are both foot control — what’s the difference? Both are foot-controlled and share the same mechanical platform. The difference is in digitization level: the LS-6021S has a digital control panel displaying capacity/speed/warnings, while the LS-6021 uses a basic mechanical/analog control panel.

Can the machine insert drawcords on children’s trousers? Yes — with the optional TK01 accessory kit, all three versions support drawcord insertion on children’s trousers with a minimum waist size of 50cm.

What’s the difference between the GS01 and GS02 needles? GS01 is the standard needle with a large head, suited to holes larger than 7–8mm. GS02 is a specialized needle with a small head, suited to 5–6mm holes.

How is the 80–180% efficiency improvement calculated? It’s based on comparing average processing time per unit: roughly 20–32 seconds for manual insertion, reduced to roughly 9–12 seconds with the machine. This figure is reported by the manufacturer for the line as a whole, not broken out by hand/foot control version.

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