Brother T-8421C Manuale Utente

T-8421C,T-8422C,

Features for Direct Drive Models

T-8421C Direct Drive,w/o thread trimmer
T-8422C Direct Drive,w/ thread trimmer
T-8452C Direct Drive, split needle bar, w 

・ 

Clean sewing

・ 

From light ti medium materials can be  

    adjusting the thread take-up amount

T-8421C Direct Drive,w/o thread trimmer
T-8422C Direct Drive,w/thread trimmer

・ 

Clean sewing

・ 

Selectable needle feed/lower feed

・ 

Selectable needle up/needle down

・ 

Condensed stitching and bar tacking available

・ 

Floating presser foot

(wh)

(With an AC200V)

Max. 
Sewing 
speed

Time required to reach maximum sewing speed

Comparison of power consumption

(Time/sec.)

New DD motor

Previous model
(AC Servo Motor)

0

25％ 
Reduction 

Standard motor and 
control box

High Energy Saving

Better response to the pedal operation has been realized at sewing start and 

stopping of sewing with new original motor and control box. Time required to 

reach the maximum sewing speed is approximately 25% less compared to those 

driven by the V-belt driven system(with an AC servo motor), or approximately 

7% less to T-8421B.   

The needle up stop and needle down stop positions can be set, 

so as to enhance the productivity.

New Brother-developed motor realized higher energy saving. The power 

consumption of the machine is approximately 61% less than that with the V-belt 

driven system(with an AC servo motor) and approximately 12% less than that 

of T-8421B.

It boasts top-level energy saving in the industry, enabling machines to work 

twice as many as machines even where the electricity supply is limited.

Better Response and More Comfortable Sewing

A downsized and flat control box can 

provide a larger leg space to be utilized. 

The efficiency of the operation has been 

improved. It will also help to alleviate a 

sense of fatigue of operators who have 

to sit in front of the machines in a fixed 

posture for long hours. 

The Efficiency of the Operation Has Improved

Prevents Bird's Nests

Stabilized motor stop position at the 

time of thread trimming reduces the 

bobbin racing. This prevents the bird's 

nests. It is a big advantage when 

sewing the light materials.