SINGER 4423 Heavy Duty Model Sewing Machine Review

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(More customer reviews)I purchased the Singer 4423 Heavy Duty because I wanted a more powerful replacement for my older but reliable Singer sewing machine. I wanted to able to sew a variety of projects using denim, canvas, leather, or other heavy fabrics with better results than what I was currently getting. I liked the simple design and straightforward operation of the 4423. It has a good selection of stitches (both functional and decorative) and some other nice-to-have features like adjustable needle position, automatic threader, and the one-step button hole which I was especially excited about. The other "Heavy Duty" Singers don't have these features.
When I started using it, the first thing I noticed was the less-than-stellar quality of some of the decorative stitches, but I figured that it wasn't really a big deal because I do a lot of hand embroidery and don't use those stitches that often. I decided to do a little "test project" on the machine: a zippered pouch with denim lining. The machine ran quickly and quietly on the pima cotton shell and putting the zipper in was a breeze. I was disappointed, however, with how poorly the machine handled the multiple layers of denim in the lining. It started knocking loudly and a few times stopped completely when sewing over a bulky seam, i.e. the feed dogs couldn't pull the fabric through. I rethreaded the machine, adjusted the stitch length, tension, and anything else I could think of that would be cause for "operator error". It didn't help. I guess the machine just isn't as powerful as they chalk it up to be.
I would recommend this machine as an excellent starter for a beginning seamstress. It's a bit more substantial than most of the other "entry level" machines but still has those nice features I mentioned earlier without a very big price tag.
For anyone who wants a TRUE heavy duty machine...this is not for you. I would recommend upgrading to a non-heavy duty machine in a better brand. That is, if you can afford it. I ended up buying a machine that was twice the cost but performs twice as well too. 9 layers of denim, no problem! For me, it's worth the investment.
Hope this helps!

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The Singer 4423 Heavy Duty sewing machine is a true workhorse. With a heavy duty metal interior frame, stainless steel bedplate, extra-high sewing speed and powerful motor, the 4423 Heavy Duty can sew through just about anything you throw at it. Convenience features including an automatic needle threader, top drop-in bobbin, fully automatic 1-step buttonhole, adjustable stitch length and width, drop feed for free motion sewing adds a new dimension of ease to such serious sewing. 23 Stitch patterns including basic, stretch and decorative makes this machine perfect for both utilitarian and creative projects. Free arm with accessory storage, adjustable presser foot pressure, and provision for mounting in a cabinet are also featured here. Standard accessories include instruction manual, power cord, presser Feet (All Purpose, Buttonhole, Button Sewing, Zipper), quilting/stitch guide, spool caps, screwdriver, lint brush/seam puller, bobbins and needles round out this impressive offering.

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