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Mass-Centering Machines for Crankshafts 400 SBRZ, 600 SBRZ, 400 TBTZ, 400 MBRZ - Schenck Italia


  • Modular design, change over for various crankshaft types through different carriages
  • Fully automatic operating sequence
  • Direct integration with production lines
  • Processing of unbalance data from the final balancing machine for optimization of the manufacturing process

Design

Mingle or multi-station machines with automatic sequence. Loading and unloading manually with a suitable lifting device, automatically by loading gantry or by integrated lift and carry transport.

Flexible machine design, especially suitable for varying crankshaft programs. Manual or automatic length
adjustment for change-over to various crankshaft lengths. Balancing frame supported on the machine base by round springs. Two carriage units mounted on the balancing frame with integrated externally rotating end discs mounted on precision bearings, each with two adjusting gears. Hydraulic spindle drill units or electro-mechanical carriage drill for center drilling, either integrated into the measuring station or arranged in a separate centering station.
Design

Range of application

Mass-centering of face milled raw crankshaft castings or forgings in a variable program.
Processing of symmetrical and asymmetrical crankshaft types by change over.
Conceived for use by engine manufacturers in mid-volume and high-volume production.
Manuel loading and unloading of the machine by lifting device or automatically by interfacing with customer's conveying equipment. Integration of preceding or subsequent process steps in the complete line.
Dati tecnici
Technical data at a glance      400 SBRZ  400 TBTZ   400 MBRZ  600 SBRZ 
Measuring unit      CAB 950  CAB 950  CAB 950  CAB 950 
Passenger car crankshafts      •  •  •   
Crankshafts for light commercial              
vehicles and trucks             • 
Asymmetrical crankshafts      •  •  •  • 
Varying type programs      •  •  •  • 
Automatic sequence of operations      •  •  •  • 
Lifting device            • 
Combined measurement and centering      •      • 
Separate measurement and centering        •     
Measurement only          •   
Crankshaft forging or casting             
Weight    [kg]  7 - 50  7 - 50  7 - 50  40 - 200 
Outside diameter, max.    [mm]  220  220  220  320 
Main journal diameter    [mm]  45 - 80  45 - 80  45 - 80  70 - 130 
Length    [mm]  360 - 780  360 - 790  360 - 790  500 - 1500 
Machine             
Width A 3)    [mm]  6700  3900  3900  7000 
Depth B 3)    [mm]  3000  4000  4000  4000 
Height C 3)    [mm]  2000  2000  2000  2600 
Balancing speed    [min -1]  400  400  400  300 
Clamping diameter    [mm]  45 - 120  45 - 120  45 - 120  60 - 180 
Drill clamping diameter, max.    [mm]  25  25  -  25 / 32 
Residual eccentricity 4)    [mm]  0,06 - 0,07  0,06 - 0.07  -  0,06 - 0,07 
Displacement, max.    [mm]  ±4  ±4  -  ±5 
Cycle time 2)    [s]  45 - 80  25 - 32  23  50 - 80 
Change-over time 1)    [min]  1 - 30  1 - 50  1 - 30  1 - 45 
Power consumption    [kVA]  17  20   12  19 
             
Basic machine  Order No.  R0630100.01  R0630300.01  R0630400.01  R0630200.01   
Options             
Axial stop  Order No.  R0630101.01  R0630301.01  R0630401.01  R0630201.01   
Swarf conveyor  Order No.  R0630104.01  R0630304.01  -  R0630204.01   
             
1) Depending on crankshaft program and operator skill             
2) Depending on weight, unbalance and drilling time (without loading and unloading)             
3) Data non-binding, depending on equipment supplied             
4) According to DIN 1319, 95% probability, relative to outer counter weights, mounting on center holes