can this machine sew thru heavy duty canvas or leather?

This machine is not designed for leather or heavy duty canvas. It could possibility sew through 2 layers of canvas with the correct needle but that is about as heavy as it could take. I have no problem sewing up to 3 layers of denim or 2 layers of upholstery vinyl, but heavier items could damage the machine. It is a wonderful little machine that I use 6-8 hours daily but really not designed for industrial sewing of heavy utility fabrics.

Can I use my metal bobbins in my machine or do I need to use the plastic ones?

All top load machines use plastic bobbins except for older early singers with metal bobbin case,there is a magnetic ring attached to the hook center that holds the plastic bobbin case from rattling and to slow its movement, if you use metal bobbins they become held by the magnetic transfer through the bobbin case floor (metal) and limit or restrict bobbin rotation,if you remove the magnet you can use the metal bobbins,however it will be noisey and excelarate wear on the bobbin case

does this machine have foot pedal?

It does have a foot pedal which is on the short side but I have it anchored on a wood flooring sample with double sided tape. That solves the problem of it not quite reaching the floor, and because the pedal is light as a feather it was always turned around, upside down or on it’s side when I went to step on it but not now.

can a beginner use this machine.. i am thinking about the speed

Yes - This is one of the easiest machines to use. You will get used to the foot pedal very fast to control the speed. I have given several of these machines away as presents. I also keep two of these machines at all times.They get used of leather work, quilting and wearable art such as jackets and shirts. A great machine !!!

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Heavy Duty 4423 (Grey) High Speed Sewing Machine + Accessories | 23 Built-In Stitches Deliver 97 Stitch Applications | 50% More Power, 1100 Stitches/Min | Metal Frame, 1-Step Buttonhole

Product ID: 1543717

Details

Brand
SINGER
Color
Grey
Global Trade Identification Number
Is Electric
Yes
Item Weight
17.1 Pounds
Material
Plastic

⚡1100 stitches/min high-speed power

🧵23 built-in stitches, 97 applications

🛠️Heavy-duty metal frame for durability

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฿26654

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In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
SINGER
Color
Grey
Global Trade Identification Number

Description

🧵 Sew Bold, Sew Fast, Sew Like a Pro!

ALL INCLUSIVE KIT - Comes with essential presser feet and accessories to start sewing smarter immediately.
EFFORTLESS THREADING - Automatic needle threader eliminates frustration and saves time.
SPEED MEETS PRECISION - Sew up to 1100 stitches per minute without skipping a beat.
VERSATILITY UNLEASHED - 23 built-in stitches offering 97 stitch applications for every creative need.
POWER THROUGH PROJECTS - 50% more motor power means no fabric too tough.

The SINGER® Heavy Duty 4423 is a powerhouse sewing machine designed for professionals and passionate hobbyists alike. Featuring a robust metal frame and a motor with 50% more power, it delivers up to 1100 stitches per minute for fast, flawless sewing. With 23 built-in stitches providing 97 stitch applications, plus an automatic needle threader and a comprehensive accessory kit, this machine is engineered to handle everything from delicate fabrics to heavy denim with ease and precision.

Specifications

ASIN	B003VWXZQ0
Best Sellers Rank	#4,920 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #14 in Sewing Machines
Brand	SINGER
Brand Name	SINGER
Color	Grey
Customer Reviews	4.5 out of 5 stars 20,913 Reviews
Global Trade Identification Number	00037431883018
Included Components	Included Accessories: All-Purpose Foot, Zipper Foot, Buttonhole Foot, Button Sewing Foot, Seam Ripper / Lint Brush, Quilting Guide, Needles, Bobbins, Screwdriver, Auxiliary Spool Pin, Spool Pin Felt, Soft-Sided Dust Cover.
Is Electric	Yes
Item Dimensions D x W x H	6.25"D x 15"W x 12"H
Item Type Name	Sewing Machine
Item Weight	17.1 Pounds
Manufacturer	SINGER
Material	Plastic
Model Number	4423
Part Number	4423.CL
Power Source	Corded Electric
Product Dimensions	6.25"D x 15"W x 12"H
UPC	037431883018
Unit Count	1.0 Count
Warranty Description	25 year limited parts; 90 days full coverage.

Reviews

C**N

21.01.2026

J**E

3.03.2026

L**I

6.02.2024

A**R

31.03.2026

F**Z

1.04.2026

K**R

13.07.2019

P**P

11.02.2017

H**G

19.12.2012

S**U

4.04.2022

M**T

11.04.2026

I**.

14.04.2026

D**Y

9.12.2025

T**I

3.03.2026

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