KM 921 AR-T3
Jeans Waistband Sewing Automation Unit




The KM 921 AR-T3 Chain Stitch Waistband Sewing Automation is a unique product that delivers outstanding stitching quality and is the world’s best-selling machine in its category. The machine has a daily production capacity of 1,700–2,500 pieces per 8 hours.
Its exclusive puller system enables high performance on all fabric types, from stretch denim to cotton denim.
INDEPENDENT SUPPORT SYSTEM
The Independent Support System eliminates the need for additional needle support adjustments when the stitch length setting is changed.
ADJUSTABLE WAISTBAND CUTTING UNIT
Allows easy adjustment of waistband cutting distances at both entry and exit points directly via the control screen.
ADJUSTABLE STITCH OPTIONS
Stitch removal for the right and left needles can be adjusted independently.
6-NEEDLE MACHINE HEAD
A special machine head designed exclusively for AGM Special, capable of operating with a 1/8″ needle gauge.
FEATURES
Independent Support System that does not require additional needle support adjustment when the stitch length is changed
6-needle chain stitch machine head specially designed for AGM Special
Software fully developed by AGM Special
Independently adjustable stitch removal for left and right needles
Additional rear puller roller positioned behind the cutting blade
Automatic cutting system at both entry and exit points
Specially designed guarded presser foot
Rubber roller puller system with different upper and lower rollers for curved and straight waistbands
Automatic dual tension system that prevents chain stitch looping
User-friendly touchscreen interface with Turkish and English language options
Crankcase cleaning system that allows easy oil replacement
OPTIONS




| Standard Set: |
| 1/8″ - 1/8″ - 1″ - 1/8″ - 1/8″ |
| Optional Sets: |
| Needle Gauge: Minimum 1/8″, Maximum 1/4″ |
| Number of Needles: Minimum 1, Maximum 6 |
| Set Width: Minimum 1″, Maximum 1 3/4″ |
TECHNICAL SPECIFICATIONS
| Machine Head | 6-needle chain stitch |
| Motor | Direct-drive electronic servo motor |
| Foot & Table | Adjustable L-type |
| Stitch Removal | Independently adjustable stitch removal for right and left needles |
| Cutting Unit | Separately adjustable cutting at entry and exit points |
| Presser Foot Lift | Automatic |
| Puller Unit | Additional reinforced rear roller puller system (behind the cutting blade) |
| Needle Cooling | Additional reinforced needle cooling system |
| Presser Foot | Guarded presser foot |
| Roller Unit | Rubber roller puller system with different upper and lower rollers for curved and straight waistbands |
| Feed Adjustment | Mechanical adjustment of roller pulling force (low/high) |
| Oil Drainage | Crankcase cleaning system for easy oil replacement |
| Air Pressure Roller | Additional air pressure roller system (to increase roller pulling force) |
| Tension System | Automatic dual tension system preventing chain stitch looping |
| Touchscreen | User-friendly touchscreen with Turkish and English language options |
| Cutting Distance | 55 mm |
| Maximum Speed | 3,200 rpm |
| Daily Capacity | 1,700–2,500 pieces / 8 hours |
| Net Weight | 98 kg |
| Gross Weight | 111 kg |
| Dimensions | 60 × 100 × 130 cm |
| Air Pressure | 6 bar |
| Voltage | 220–240 V, 60 Hz |
| Power | 2,400–2,800 W |