BROTHER CV3440
A coverstitch machine for hems, topstitching and decorative stitching. It sews with 4, 3 and 2 threads and has a 155 mm working space and a free arm.
The machine sews four main stitches: triple cover, wide cover, narrow cover and chain. When you sew hems or decorative stitching, the cover stitch forms on the underside of the fabric and rows of straight stitches show on top.
The machine is intended for household use and suits fine to heavy fabrics. The working space to the right of the needle measures 155 mm, and the free arm makes necklines, hems and cuffs easier to sew.

Features

Lower looper threading
Push the looper release lever and the looper moves to the right, so you can thread its eye. The thread path is marked with a coloured line and numbers.

Adjustable presser foot pressure
You change the presser foot pressure with the dial on top of the machine, above the needle.

Metal thread stand
The metal thread stand adds strength and, once the threads are in place, helps straighten them to prevent tangling.
More features
Automatic thread tension release
- Lifting the presser foot lever releases all thread tensions.
- They stay open until you lower the presser foot again.
Free arm
- With the bed extension removed, it is easier to sew necklines, hems and cuffs.
Chain stitch
- The machine can sew a chain stitch with 1 needle and 2 threads.
Differential feed
- Set with a dial; the normal value is 1.0.
- A lower value stretches the fabric and reduces puckering on thin fabrics; a higher value reduces rippling when sewing stretch fabrics.
- The more elastic the fabric, the further the dial should be turned from 1.0 toward 2.0.
- Do not use differential feed on thick non-stretch fabric such as denim, as it may damage the fabric.
Vertical needles
- They penetrate deeper and are less likely to damage the fabric.
LED light
- The LED light next to the needle illuminates the sewing area and saves energy.
Thread cutter
- The built-in cutter trims the threads.
Mounting holes for attachments
- There are holes for attachments from Brother and other manufacturers.
Front cover compartment
- There is room for needles, tweezers and the hexagonal driver.
Looper thread tension lever
- The lever fine-tunes the looper thread tension: raise it to increase the tension when sewing stretch fabric or with a short stitch length, and lower it to reduce the tension when sewing non-stretch fabric or with a long stitch length.
Stitches and their uses
| Stitch | Needles and threads | Suited for |
|---|---|---|
| Triple cover stitch | 3 needles, 4 threads | Reinforced cover stitch for hems, decorative effects, and elastic, durable seams on sportswear. |
| Wide cover stitch | 2 needles, 3 threads | Hemming, topstitching and decorative effects on T-shirts and knits. |
| Narrow cover stitch | 2 needles, 3 threads | Hemming fine fabrics, tape binding and topstitching. |
| Chain stitch | 1 needle, 2 threads | Rolled hems, tape binding, joining woven fabrics and decorative effects. |
Stitch examples
The wide and triple cover stitches are 6 mm wide, the narrow cover stitch 3 mm.
Technical specifications
| Machine type | Mechanical coverstitch machine |
|---|---|
| Fabrics | Fine to heavy materials |
| Threads and needles | 4, 3 or 2 threads; 1, 2 or 3 needles |
| Stitch types | Chain, wide cover, narrow cover, triple cover |
| Maximum sewing speed | 1000 stitches/min. |
| Stitch width | 6 mm / 3 mm |
| Stitch length | 2–4 mm (normally 3 mm) |
| Presser foot lift | 5–6 mm |
| Needle bar stroke | 29 mm |
| Needle | Standard home sewing machine needle SCHMETZ 130/705H (90/#14) |
| Working space | 155 mm |
| Differential feed | Yes, normal setting 1.0 |
| Free arm | Yes |
| Lighting | LED |
| Presser feet | Clear foot, standard foot |
| Dimensions (W × D × H) | 396 × 297 × 358 mm |
| Weight | 7.6 kg |
| Country of origin | Taiwan |
| Intended use | Household use (according to the Brother manual) |
| Warranty | 3 years (1 year for commercial use, according to Brother) |
In the box
In the box, according to the Brother operation manual. The numbers match the picture.
Optional accessories (not included in the box)
Brother lists the following optional accessories for this machine. When using them, use the presser foot supplied with the accessory. List compiled from the Brother operation manual and the Brother support page section 'Consumables & Options' for this model.
- Hemming set SA221CV – for single or double fold hems
- Bias tape folder SA222CV – folds and attaches 12 mm or 12.7 mm (1/2") wide bias tape in one step
- Belt loop guide SA223CV – turns fabric strips into belt loops
- Bias tape binding set SA230CV – a wide guide for wide bias tape stitched with the 6 mm cover stitch and a small guide for narrow bias tape stitched with the 3 mm cover stitch
- Dual function fold binder SA231CV – folds 32 mm wide bias fabric tape into 8 mm double fold bias tape and applies it to the fabric edge
Manuals
Any questions?
Call +370 685 85915 or email info@siuvimomanija.lt. We will help you check whether this coverstitch machine is right for your work.





