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Transformer Core Cutting Machines

Silicon Steel Slitting Line

Description of Silicon Steel Slitting Line
This line is specially produced for cutting big silicon steel coil into strips for silicon steel cores, which are widely used in transformer, current/voltage transformer and other electric apparatus.

Components of Silicon Steel Slitting Line
The line is composed of hydraulic expansion decoiler, No.1 storage pit, slitting machine, No. 2 storage pit, guiding & tension device, recoiler, unloading car, hydraulic system and control system.

Main Technical Data of Silicon Steel Slitting Line

No. Item Specifications
1 Model BGJ-1000 (BGJ-1250)
2 Steel coil thickness 0.23-0.6mm
3 Max. coil width 1000mm (1250)mm
4 Max. coil weight 5T (6T)
5 Decoiler inner diameter 460-520mm
6 Decoiler coil outer diameter 1200mm
7 Slitting speed 10-60m/min
8 Burr height Less than 0.02mm
9 Number of slitting piece Max. 20 pieces
10 Min. slitting width 40mm
11 Slitting blade material Carbide alloy
12 Slitting blade size 120 /198.45 /18mm
13 Slitting blade life More than 100km before grinding
14 Slitting accuracy in width Less than 0.2mm
15 Recoiler ID 500mm
16 Recoiler weight 5 ton (6 ton)
17 Total power About 29kW
18 Machine length 11m (12m)
19 Total weight About 10 ton (14 ton)

Full-automatic Silicon Steel Cut-to-length Line

This line is designed by our company with technology similar to GEORG Germany. It combines bevel cutting and V-shape notching together. Hole punching is optional.

Description of Full-automatic Silicon Steel Cut-to-length Line
With technology similar to GEORG Germany, this line is totally designed by ourselves. It combines the functions of bevel cutting and V-shape notching together (Hole punching is optional).

Components of Full-automatic Silicon Steel Cut-to-length Line:
1 Double-head mechanical expansion decoiler, active drive, capacity 5T
2 High precision servo feeding device, feeding precision ≤0.1mm
3 High precision pneumatic V-shape notching machine driven by step servo motor, step feeding tolerance ≤ 0.1mm; notching angle ≤1°, notching die material YG20 alloy.
4 High precision pneumatic shearing machine (two sets) for cutting 45°angles, shearing angle ≤1°, shearing blade material YG20 alloy
5 Double-layer sorting table
6 Double-layer raising & dropping table, capacity 10T
7 PLC control system

Main Technical Data of Full-automatic Silicon Steel Cut-to-length Line:

BHX-400 BHX-600 BHX-900
CRGO coil width 40-440mm 60-640mm 80-920mm
Cutting length 250-2500 400-3500 500-5000
CRGO thickness 0.23-0.35 0.23-0.35 0.23-0.35
Cut-to-length precision ±0.1mm ±0.1mm ±0.1mm
Burr height ≤0.02mm ≤0.02mm ≤0.02mm
Cutting angle precision ±0.025° ±0.025° ±0.025°
Feeding speed 0-240m/min 0-240m/min 0-240m/min
Cutting duration ≤230ms ≤240ms ≤250ms
Cutting/punching tool life 1,200,000 times before grinding
Max. step-lap stroke 40mm 40mm 40mm
Step-lap times 1, 2, 3, 4, 5, 6, 7
Strip collecting method Automatic stacking
Total electric power 20kW 30kW 35kW
Land occupation (L×W×H) 15m×5m×2m 18m×5.5m×2.5m 22m×6m×2.5m

Semi Automatic Silicon Steel cut-to-length line

Description of Semi Automatic Silicon Steel Cut-to-length line:
This silicon steel cut-to-length line is only used for cutting silicon steel strips into core pieces with both ends in 45°. This line should be worked with a V-shape notching machine and shearing machine to finish all the cutting & notching for silicon steel core pieces.

Main Technical Data of Semi Automatic Silicon Steel Cut-to-length line:

No. CodeItem BHJ 400 BHJ 500 BHJ 600 BHJ 800 BHJ 850
1 Steel thickness 0.23~0.5mm
2 Strip width 40~400mm 40~500mm 90~600mm 100~800mm 100~850mm
3 Strip length 300~1600mm 300~2000mm 950~3150mm 950~4200mm 950~4200mm
4 Cutt-to-length tolerance +/-0.2mm
5 Burr height Less than 0.03mm
6 Shearing angle tolerance Less than 0.5° per 1000mm
7 Shearing speed 28 pcs/min @1000mm long Linear speed 45m/min @ 2000mm long
8 Total line power 11.2kW 11.2kW 18.7kW 18.7kW 18.7kW
9 Length of the line 10.5m 10.5m 18.7m 20.9m 20.9m
10 Suitable transformer capacity 10000kVA and less 20000kVA and less 31500kVA and less 31500kVA and more 31500kVA and more

Zhenhuan offers high quality roll forming machine, spiral duct forming machine, plasma cutting machine and welding machine etc. for global customers.

(Compact Transformer Mitred Core Cutting Machine)

This compact transformer mitred core cutting machine is designed in compact structure. It is designed with the function of online punching, notching and swing shear cutting. The total length of the product is no more than 6m. This machine is composed of servo drive, PLC, and HMI. Full automatic, the angle, hole position, V notching position, cutting length and step-lap data can be preset in the PLC.

This compact transformer mitred core cutting machine features a compact structure, as well as online punching, notching, and swing shear cutting. The total line length is no more than 6m. It also features a servo drive, PLC control and HMI operation. The angle, hole position, V notching position, cutting length and step-lap data can all be pre-set using PLC control, allowing for fully automatic cutting of different transformer laminations, including center limbs.

Technical Parameters

No. Item Specifications
1 Model JN-2003/3003/4003/5003/8003
2 CRGO thickness 0.23-0.6mm
3 CRGO coil width 30-200/300/400/500/800mm
4 Cutting length 1-999999mm
5 Cut-to-length tolerance ±0.1mm
6 Cutting angle tolerance ±0.03°
7 Hole position tolerance ±0.1mm
8 Notching position tolerance ±0.1mm
9 Burr height Less than 0.02mm
10 Feeding speed Max. 100m/min
11 Production speed 30-60 pieces per minute
12 Punching/notching die Carbide alloy
13 Cutting blade Carbide alloy
14 Die & blade lifespan More than 1.2 million times before grinding
15 Max. step-lap stroke 40mm
16 Step-lap times 1, 2, 3, 4, 5, 6, 7
17 Servo motors Delta from Taiwan

High Speed Electrical Silicon Steel Rectangular Cutting Machine

This machine uses servo motors to feed, punch and cut electrical silicon steel coils into rectangular laminations for transformers, welders and reactors. It is known for its high speed and outstanding precision. With PLC control and HMI operation, it includes specially designed programs for cutting round columns and step-stack laminations, as well as sector reactor cores.

Technical Parameters of High Speed Electrical Silicon Steel Rectangular Cutting Machine

No. Item Data
1 Model JN-2002/3002/4002/5002S
2 CRGO thickness 0.23-0.6mm
3 CRGO coil width 30-200/300/400/500mm
4 Cutting length 1-999999mm
5 Cut-to-length tolerance +/-0.02mm
6 Hole position tolerance +/-0.02mm
7 Hole numbers 0-12
8 Burr height Less than 0.02mm
9 Feeding speed Max. 100m/min
10 Cutting speed 80~150 pieces per minute
11 Punching die Carbide alloy
12 Cutting blade Carbide alloy
13 Die & blade life More than 1.2 million times before grinding
14 Servo motors Delta from Taiwan

Distributed Gap Core Cutting Machine

This machine is developed in-house, and is designed for cutting distributed gap cores in single phase or three phase distribution transformers and instrument transformers at 500kVA ~ 5000kVA.
It uses flexible software that is similar to Unicore UCM machines for different wound gap cores:

Technical Parameters of Distributed Gap Core Cutting Machine

No. Item Data
1 Model JN-2002/3002/4002/5002S
2 CRGO thickness 0.23-0.6mm
3 CRGO coil width 30-200/300/400/500mm
4 Cutting length 1-999999mm
5 Cut-to-length tolerance +/-0.02mm
6 Hole position tolerance +/-0.02mm
7 Hole numbers 0-12
8 Burr height Less than 0.02mm
9 Feeding speed Max. 100m/min
10 Cutting speed 80~150 pieces per minute
11 Punching die Carbide alloy
12 Cutting blade Carbide alloy
13 Die & blade life More than 1.2 million times before grinding
14 Servo motors Delta from Taiwan
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