Справочник Пользователя для Brother T-8421C

T-8452C,T-8722C,T-8752C

 / thread trimmer

sewn by    

T-8722C Direct Drive,large hook,w/ thread trimmer
T-8752C Direct Drive,split needle bar,large hook, 
w/ thread trimmer

・ 

Great needle penetration force

・ 

Selectable needle feed/lower feed

・ 

Clean sewing

T-8421C 
Direct Drive

w/o thread trimmer

Sewing speed

Stroke 

(Treadle depression amount)

Powerful 550W motor outputs large amounts of torque even at slow speeds so that strong needle penetration force can 

be obtained. This allows accurate sewing of heavy materials and joints. If the needle penetration resistance increases, 

such as when sewing heavy materials and materials with joints, vibration control (intermittent impact) automatically 

increases the penetration force.(Patent pending)

Great Needle Penetration Force

Adjustment of the thread trimming timing is done simply by adjusting the position of 

the thread trimming cam relative to the lower shaft. There is no need to remove the 

timing belt and the timing between the needle and the rotary hook does not change, 

so there is no need for troublesome re-adjustment when the thread trimming timing is 

adjusted. Adjustment is easy even if the material or thread thickness changes, so 

that accurate thread trimming can be obtained.

Easy Thread Trimming Timing Adjustment 

(T-8422C/8452C/8722C/8752C)

Using a highly-rigid frame and computer analysis that achieves balance between the main parts , its noise and vibration 

are minimized. In particular, the high-frequency noise from the rotary hook opener that is irritating to the ears has been 

greatly reduced. This reduces operator discomfort and alleviates stress.

Low Noise and Low Vibration for Stress-Free Operation 

(T-8421C/8422C/8452C/87722C/8752C)

The curve of the acceleration at 

sewing start can be selected on the 

operation panel. The machine 

provides more options for 

customizing operations by the 

operator's preference.

 

 

 

This is located in a place 

where it can be pressed 

easily in order to increase 

working efficiency.

Further Improved Ease of Operation