JACK · Coverstitch

JACK® K7‑UT

JACK® K7-UT – AI Smart Cylinder-Bed Coverstitch Machine with Auto Thread Trimmer – Complete Setup, Table & Stand Included

The JACK® K7-UT is an AI-smart cylinder-bed coverstitch machine engineered for high-efficiency production of knit and stretch garments.

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Capacity

Needle System: UY×128GAS #9-#16

Automation

Drive Type: Direct Drive
Thread Trimmer: Automatic

Physical

Motor: Direct-Drive Servo Motor
Machine Type: Cylinder-Bed Coverstitch
Arm Type: Cylinder Bed
Technology: AI Smart
Setup: Table & Stand Included

Manufactured by

Jack. 30+ years of industrial sewing.

350+ genuine parts in stock (USA) · authorized US service · manufacturer warranty included.

Why Jack →

Detail

How it runs on the floor

The JACK® K7-UT is an AI-smart cylinder-bed coverstitch machine engineered for high-efficiency production of knit and stretch garments. Its intelligent stitch optimization system continuously adjusts for consistent seam quality, while the automatic thread trimmer eliminates manual handling between cycles — reducing cycle time and operator fatigue on high-volume runs. The cylinder-bed arm provides unrestricted access to tubular pieces, making it the professional standard for hemming sleeves, cuffs, and finished garment edges with a clean, stretch-ready coverstitch.

JACK® K7-UT AI Smart Cylinder-Bed Coverstitch Machine
Industrial sewing table
Machine stand
Needle set
Looper threader
Screwdriver and basic tool kit
Operator's manual

Key Features

AI-smart technology continuously optimizes stitch parameters for consistent seam quality across varying fabric weights and tensions
Automatic thread trimmer (UT) cuts threads at the end of each seam cycle, reducing handling time and increasing throughput on production lines
Cylinder-bed arm configuration provides full clearance for tubular garment pieces, enabling precise hemming of sleeves, cuffs, and circular seams without repositioning
Direct-drive servo motor delivers quiet, energy-efficient operation with precise speed control and minimal vibration for all-day production comfort
Professional coverstitch seams with decorative topstitching on the face and looper coverage on the underside for secure, stretch-ready finishes on knit fabrics
User-friendly control panel with intuitive parameter adjustment for quick changeovers between fabric types and stitch settings
Complete setup with industrial table and stand included — ready to install and start sewing

Ideal For

High-volume T-shirt, activewear, and knit garment hemming
Sleeve, cuff, and tubular garment finishing
Production facilities seeking automation and reduced operator handling
Manufacturers requiring consistent, repeatable coverstitch seam quality
Knit and stretch fabric garment production operations

Questions

Before you buy

Quick answers to the questions buyers ask most about Jack industrial machines. For pricing, configuration, and live availability, the Shopify product page is always the source of truth.

How do I get current pricing for this Jack model?

Pricing and live availability are handled on the Shopify store. Tap 'Buy on Shopify' above to see the current price, configuration options, and delivery estimates for your zip code.

Does the machine ship as a complete setup?

Most Jack industrial models ship as complete production setups: head, servo motor, table, and stand. The product description above lists exactly what's included for this specific model.

What kind of warranty does Jack provide?

Every Jack machine carries a manufacturer warranty against defects in materials and workmanship. Authorized US dealers also provide local service and parts support. See the Shopify product page for the warranty terms specific to this model.

Are genuine Jack replacement parts available?

Yes. Original Jack feed dogs, hooks, gauge sets, presser feet, and electronics are stocked and traceable to the manufacturer. The Service & Parts page lists parts categories; the Shopify store carries the active SKUs.

Where is service available in the United States?

Authorized service technicians work nationwide through Jack's US dealer network. The Service & Parts page explains how coverage works, and each model's Shopify listing routes you to the dealer closest to your production floor.