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Crankshaft Grındıng Machınes

STH 2200
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STH 2200

STH 2200  Crankshaft Grinding Machine ; is designed for precise grinding of crankshafts and cylindrical parts and to obtain the desired size and surface quality. The main body is completely one piece, the table and the wheelhead are made of high quality gray cast iron. The pneumatic (air assisted) operation of the work heads and the ability to adjust the spindle rotation speeds to the variable speed have made the operation of the machine extremely easy. Wheelhead movement; Servo motor and ball screw system, the right and left movement of the table is made by servo motor and rack gear system.

Since the table movement speeds can be adjusted as desired, cylindrical  spindles can be grinded in the machine. All functions of the machine are done via the the control panel. X and Y axis movements working at serial speed thanks to the joystick arms.

In addition, the manual movement of both axis is made with the handwheel encoders on the control panel and the movement of the two axis can be seen on the digital screen. In this way, it is ensured that the work is done quickly and precisely.

TECHNICAL SPECIFICATIONSSTH 2200
Maximum distance between centers

2250 mm

Maximum distance between self centering chucks2000 mm
Maximum weight admitted on the centers

300 kg

Maximum weight admitted with steady rest

600 kg

Height of centers over table

300 mm

Maximum diameter admitted on steady rest

130 mm

Maximum diameter of grinding wheel

810 mm

Maximum grinding diameter with new wheel

200 mm

Maximum head offset

140 mm

Minimum grinding wheel thickness
18 mm
Maximum grinding wheel thickness

60 mm

Diameter of the chucks

200 mm

Workheads rotation speeds (stepless)10÷100 rpm
Maximum diameter admitted on table

600 mm

Maximum quill traverse on tailstock

25 mm

Air pressure for heads displacement8 bar
Wheelhead fast feed with servo motor

200 mm

Wheelhead maximum centesimal feed with handwheel encoder

150 mm

Wheelhead manual feed with handwheel encoder turn

1 mm

Wheelhead feed with handwheel encoder (between two scales)0.005 mm 0.01 mm 0.10 mm

Table feed with handwheel encoder (one turn)

0 ÷ 5 mm

Fast automatic table traverse speed3000 mm/1' 

Grinding wheel motor power

7.5 kw AC motor
Headstock motor power1.5 kw AC motor
Wheelhead motor power1 kw servo motor
Table movement motor power1.5 kw servo motor
Coolant unit motor power0.09 kw AC motor
CODESTANDARD EQUIPMENTSQUANITY
STD 235PLC system for servo motors

1

STD 236X axis servo motor

1

STD 237Y axis servo motor

1

STD 238Y axis handwheel encoder

1

STD 239X axis handwheel encoder

1

STD 240

Steady rest capacity diameter 30÷160 mm thickness

2

STD 241Grinding wheel face and radius dresser with 1.5 carat diamond

1

STD 242Shaft centering  device with dial gauge

1 

STD 243Crank pins arm measuring device

1

STD 244Self centering chuck diameter 200 mm

2

STD 245Head displacement checking device with dial gauge

1

STD 246Pair of flanges for grinding wheel

2

STD 247Static grinding wheel balancer with rotating plates 

1 Set

STD 248Grinding wheel diameter 810x203x22 mm

1 

STD 249Grinding wheel static balancing shaft

1 

STD 250Grinding wheel extractor and bushing threaded hub protection

1 

STD 251Wheel head and table slide ways lubrication system 

1 Set

STD 252Pneumatic system

1 Set

STD 253

Coolant system

1 Set

STD 254Set of service tools

1 Set

STD 255Spot light 

1 

STD 256Balancing nuts and rubbers

11 

STD 257Operating manual

1 



                                                                                                                          
CODEOPTIONAL EQUIPMENTSQUANITY
SR0172Continuous journal sizing gauge (Ø 25-110 mm)

1

SR0173Measuring fork range from ( Ø 100-200 mm)

1

SR0174X-Y axis digital readout by linear encoders ( Turkish Product)

1

SR0175Self centering chuck diameter 200 mm

1

SR0176Steady rest capacity diameter  30÷160 mm thickness

1

SR0177Crankshaft counter balance in front weights (require 2 pcs )

1 Set

SR0178Crankshaft counter balance back weights ( require 2 pcs )

1 Set

SR0179Portable super finisher with grinding belt

1

SR0180Grinding belt for superfinisher 20 mm  thickness

1

SR0181Grinding belt for superfinisher 25 mm thickness

1

SR0182Grinding belt for superfinisher 30 mm thickness

1

SR0183Tapered center with removing bushes ( require 2 pcs)

1 Set

SR0184Sheared center with removing bush

1

SR0185Driving dog capacity diameter ( Ø 20÷75 mm ) (require 2 pcs)

1 Set

SR0186Driving dog capacity diameter ( Ø 70÷140 mm ) (require 2 pcs)

1 Set

SR0187Cathplates (require 2 pcs)

1 Set

SR0188Pair of flanges for grinding wheel

1

SR0189Grinding wheel dresser diamond (1.5 carat)

1

SR0190Grinding wheel diameter 810x203x18 mm

1

SR0191Grinding wheel diameter 810x203x20 mm

1

SR0192 Grinding wheel diameter 810x203x24 mm

1

SR0193Grinding wheel diameter 810x203x26 mm

1

SR0194Grinding wheel diameter 810x203x28 mm

1

SR0195Grinding wheel diameter 810x203x30 mm

1

SR0196Grinding wheel diameter 810x203x32 mm

1

SR0197Grinding wheel diameter 810x203x34 mm

1

SR0198Grinding wheel diameter 810x203x36 mm

1

SR0199Grinding wheel diameter 810x203x38 mm

1

SR0200Grinding wheel diameter 810x203x40 mm

1

SR0201Grinding wheel diameter 810x203x50 mm

1

SR0202Spot light 

1

DIMENSIONS

Length

4400 mm

Height

1600 mm

Width

2100 mm

DIMENSIONS WITH PACKING

Length

4550 mm

Height

1860 mm
Width

2250 mm

WEIGHT
Without packing5300 kg
With packing

6300 kg