Singer Heavy Duty 6700C

Name: Singer Heavy Duty 6700C
Brand: Singer
Author: SewingSpecs

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Data from official source

Sheet curated by SewingSpecs — We check every spec sheet against the manufacturer's own documentation: each value carries its source and the date we read it. Published Sept. 17, 2026 · Last updated Sept. 18, 2026 · Data verified Sept. 18, 2026

This is the computerized version of the Heavy Duty line: instead of a dial, an LCD screen shows the selected stitch, width and length, called up with a button instead of turning a ring. The one-step buttonhole comes in 7 styles, and there is one font for initials and monograms.

The interior frame stays metal, with the same type of motor as the mechanical Heavy Duty line: presser foot pressure is adjustable, the feed dog drops for free-motion work, and removing the storage compartment frees the arm. The presser foot lifts 6 mm.

It suits people who want the convenience of a screen and button-based selection without moving up to an embroidery or advanced quilting machine: it remains a machine for sewing heavy fabrics with a bit more electronic convenience, not a multi-function machine.

01 · Verified data

Technical specifications

Weight 7.0 kg (15.4 lb)

Parameter	Value	Source
Weight	7.0 kg (15.4 lb)	manufacturer website
Power supply	Multi-voltage	Declared by the brand
Frame material	Metal	Declared by the brand
Stitch selection	Buttons	Declared by the brand
Maximum speed	1100 spm	Declared by the brand
Buttonhole type	One-step	Declared by the brand
Buttonhole styles	7	Declared by the brand
Stitch types	Straight stitch, Triple stretch straight stitch, Zigzag stitch, Three-step zigzag, Triple stretch zigzag, Elastic overlock stitch, Blind hem stitch, Stretch blind hem stitch	Declared by the brand
Maximum stitch width	7 mm	Declared by the brand
Maximum stitch length	4.5 mm	Declared by the brand
Drop feed	Yes	Declared by the brand
Dual feed / walking foot system	Walking foot included	Declared by the brand
Needle threader	Semi-automatic	Declared by the brand
Presser foot lift	6 mm	Declared by the brand
Free arm	Yes	Declared by the brand
Display	LCD	Declared by the brand

02 · Summary

Pros and cons

In favour

The selected stitch, width and length stay visible on the screen.
The one-step buttonhole comes in 7 ready-made styles.
The interior frame is the same metal frame as the Heavy Duty line.
The multi-voltage power supply covers several countries' mains standards.

Worth knowing

The needle threader works with a manual lever, not a button.
The presser foot lifts only 6 mm, less clearance for very thick layers than other machines in the range.
Selection is single-button: you must scroll through stitches one by one, with no numeric keypad.

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