
JST-842DIndustrial Sewing Machines
Direct Drive Double Needle Lockstitch Sewing Machine
Suitable for Light to medium-heavy materials (cotton, denim, canvas, synthetic fabrics, thin leather)
Include material thickness, product photos, required process, voltage and expected daily output.
What this machine can do
Key Features
Stitch-length adjustment
The side-mounted dial allows stitch-length adjustment at the machine head.

Under-bed mechanism
The lower view shows the mechanical components beneath the sewing bed.

Double-needle hook area
The double-needle hook arrangement supports lockstitch formation for two parallel stitch lines.

Parallel stitch sample
The sample demonstrates the parallel stitch result of the double-needle configuration.

Technical data
Technical Data
Confirmed machine parameters are presented below in a clear table.
| Lubrication | Automatic lubrication system |
|---|---|
| Application | Light to medium-heavy materials (cotton, denim, canvas, synthetic fabrics, thin leather) |
| Max. sewing speed | 5,000 sti/min |
| Max. stitch length | 5mm (adjustable) |
| Feed system | Needle, feed dog, presser foot synchronous feed system |
| Presser foot height | 5mm (manual lift), 10mm (knee lift) |
| Needle bar stroke | 31.8mm |
| Needle type | DP×5 / #11–#18 |
| Max. material thickness | 5mm (medium-heavy fabrics) |
| Quick back device | Standard equipment |
| Thread tension control | Standard equipment |
| Weight | 45kg (net weight), 55kg (gross weight) |
| Power | Direct drive servo motor, 250W/400W optional |
| Voltage | Single phase: 110V/220V (compatible with global standards) |
Product inquiry
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Share your workpiece, material, target output and destination voltage.
