We may earn a commission when you buy through our links. Rankings are formula-based and never paid for. As an Amazon Associate I earn from qualifying purchases. Disclosure

Singer HD0400S Heavy Duty Serger

Ranked #30 of 40 in Best Sergers and Coverstitch Machines (2026). Here is every spec we scored, where it came from, and how it compares.

Affiliate disclosure: We earn a commission if you buy through links on this page, at no extra cost to you. It never affects our rankings, which come from the published scoring formula. As an Amazon Associate I earn from qualifying purchases. Learn more.

#30

Singer HD0400S Heavy Duty Serger

Best for: 4-thread official maximum, 1,300 official SPM, official differential feed

5.9/10

What we like

  • Official table lists a 4-thread maximum
  • Official table lists a maximum speed of 1,300 SPM
  • Official table lists differential feed

Watch out for

  • Official table we used does not list a stitch width

Score breakdown

Official maximum thread count 30%
Official maximum sewing speed 30%
Official stitch width * 20%
Official differential feed 20%

* Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

Official maximum thread count4 threads
Official maximum sewing speed1300 SPM
Official stitch widthNot listed
Official differential feedYes
Official machine weight13.5 lb
Official needle threaderManual
Official thread cutterManual
Official warranty wording90 day / 2yr / 25yr
PriceCheck price
Check price at Amazon
Specs source:

How it compares

Open the full comparison table

Baby Lock Splendor
8.4/10
#1 · 8-thread official maximum, 7.5 mm official stitch width, official differential feed
Baby Lock Triumph
8.4/10
#2 · 8-thread official maximum, 7.5 mm official stitch width, official differential feed
Juki MO-735
7.1/10
#3 · 5-thread official maximum, 1,500 official SPM, official differential feed
Baby Lock Applaud
6.9/10
#4 · 6-thread official maximum, 6 mm official stitch width, official differential feed
Juki MO-644D
6.6/10
#5 · 4-thread official maximum, 1,500 official SPM, official differential feed
Juki MO-654DE
6.6/10
#6 · 4-thread official maximum, 1,500 official SPM, official differential feed
Singer S0600 Serger Machine
6.6/10
#7 · 4-thread official maximum, 1,500 official SPM, official differential feed
Juki MO-1000
6.6/10
#8 · 4-thread official maximum, 1,500 official SPM
Baby Lock Acclaim
6.4/10
#9 · 4-thread official maximum, 7.5 mm official stitch width, official differential feed
Baby Lock Celebrate
6.4/10
#10 · 4-thread official maximum, 7.5 mm official stitch width, official differential feed
Baby Lock Serenity
6.4/10
#11 · 4-thread official maximum, 7.5 mm official stitch width, official differential feed
Baby Lock Victory
6.4/10
#12 · 4-thread official maximum, 7.5 mm official stitch width, official differential feed
Singer Professional 5 14T968DC Serger
6.4/10
#13 · 5-thread official maximum, official differential feed
Brother 1034D
6.2/10
#14 · 4-thread official maximum, 1,300 official SPM, 7 mm official stitch width, official differential feed
Brother 1034DX
6.2/10
#15 · 4-thread official maximum, 1,300 official SPM, 7 mm official stitch width, official differential feed
Brother 1634D
6.2/10
#16 · 4-thread official maximum, 1,300 official SPM, 7 mm official stitch width, official differential feed
Brother 1634DX
6.2/10
#17 · 4-thread official maximum, 1,300 official SPM, 7 mm official stitch width, official differential feed
Brother ST4031HD
6.2/10
#18 · 4-thread official maximum, 1,300 official SPM, 7 mm official stitch width, official differential feed
Baby Lock Vibrant
6.2/10
#19 · 4-thread official maximum, 7 mm official stitch width, official differential feed
Juki MO-623
6.1/10
#20 · 3-thread official maximum, 1,500 official SPM, official differential feed
Husqvarna Viking Amber S 300 Overlock Machine
6.1/10
#21 · 1,500 official SPM, official differential feed
Juki MO-2800
6.1/10
#22 · 1,500 official SPM, official differential feed
Juki MO-655
6.1/10
#23 · 1,500 official SPM, official differential feed
Pfaff admire 3000 Overlock Machine
6.1/10
#24 · 1,500 official SPM, official differential feed
Baby Lock Euphoria
5.9/10
#25 · 4-thread official maximum, 6 mm official stitch width, official differential feed
Brother 1134DW
5.9/10
#26 · 4-thread official maximum, 1,300 official SPM, official differential feed
Brother 3234DT
5.9/10
#27 · 4-thread official maximum, 1,300 official SPM, official differential feed
Brother AIRFLOW3000
5.9/10
#28 · 1,300 official SPM, 7.5 mm official stitch width, official differential feed
Singer 14HD854 Heavy Duty Serger
5.9/10
#29 · 4-thread official maximum, 1,300 official SPM, official differential feed
Juki MO-104D
5.9/10
#31 · 4-thread official maximum, official differential feed
Juki MO-114D
5.9/10
#32 · 4-thread official maximum, official differential feed
Singer HD0450S Heavy Duty Serger
5.9/10
#33 · 4-thread official maximum, official differential feed
Singer Heavy Duty 0420 Serger with 13 Built‑In Stitches, Heavy Duty Motor & Differential Feed
5.9/10
#34 · 4-thread official maximum, official differential feed
Singer Heavy Duty 0460 Serger with 13 Built‑In Stitches, Easy View Threading & Differential Feed
5.9/10
#35 · 4-thread official maximum, official differential feed
Singer S0080 Serger
5.9/10
#36 · 4-thread official maximum, official differential feed
Brother AIR1800
5.4/10
#37 · 1,300 official SPM, official differential feed
Husqvarna Viking Amber Air S 400 Overlock Machine
5.4/10
#38 · 1,300 official SPM, official differential feed
Husqvarna Viking Amber S 100 Overlock Machine
5.4/10
#39 · 1,300 official SPM, official differential feed
Juki MO-80CB
5.4/10
#40 · 1,300 official SPM, official differential feed