Heavy duty machine record

SINGER Heavy Duty 4423

Name: SINGER Heavy Duty 4423
Brand: SINGER

Mechanical sewing machine

Compatibility answer

SINGER specifies a transparent Class 15 bobbin for the Heavy Duty 4423.

Verified compatibility

Part or system	Relationship	Status	Evidence note
SINGER Class 15 Transparent Bobbin	Officially compatible	CONFIRMED	SINGER identifies Class 15 transparent as the 4423 bobbin class and lists 4423 in the Class 15 compatibility table.
SINGER Blind Hem Foot	Officially compatible	CONFIRMED	SINGER lists Heavy Duty 4423 in the model group compatible with the Blind Hem Foot.
SINGER Walking Foot	Officially compatible	CONFIRMED	SINGER lists Heavy Duty 4423 in the model group compatible with the Walking Foot.
SINGER Gathering Foot	Officially compatible	CONFIRMED	SINGER lists Heavy Duty 4423 in the model group compatible with the Gathering Foot.
SINGER Overcasting Foot	Officially compatible	CONFIRMED	SINGER lists Heavy Duty 4423 in the model group compatible with the Overcasting Foot.
SINGER Narrow Rolled Hem Foot	Officially compatible	CONFIRMED	SINGER lists Heavy Duty 4423 in the model group compatible with the Narrow Rolled Hem Foot.
SINGER Straight Stitch Foot	Officially compatible	CONFIRMED	SINGER lists Heavy Duty 4423 in the model group compatible with the Straight Stitch Foot.

A domestic heavy-duty mechanical machine with a top drop-in bobbin, snap-on presser feet and a maximum listed speed of 1,100 stitches per minute.

Electrical specifications shown on the official US page are region-specific.

SINGER Heavy Duty 4423 Sewing Machine SINGER · Official machine product page · Tier 2
SINGER 15 Class Plastic Bobbins 10-Pack SINGER UK · Official accessory compatibility page · Tier 2
SINGER Sewing Machine Presser Foot Kit SINGER · Official accessory compatibility page · Tier 1