NETC | CNC Machinery | SR-38
New England Tool Corporation  
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SR-38SR-38 Type B

Complex machines for large-diameter workpieces now aim for higher functionality, productivity and accuracy

STAR SR-38 is a highly functional model, which employs a machine composition including a balance-cut mechanism, two cartridge positions, angle adjustable power-driven tool unit, eight-spindle back working unit, etc. for advanced complex machining.

Machining time is reduced by the balance-cut function trough simultaneously controlled X1 and X3 axes.

The eight-spindle unit with a Y-axis control function for rear-side machining is mounted for reduction of machining time by employing the efficient process split between the front and rear sides as well as simultaneous machining. 

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Tool kinematics

sr38 kinematik

Specifications SR-38 Type B

Max. machining diameter Ø 38 mm (1-1/2in)
Max. headstock stroke With R.G.B. unit 320 mm (12-19/32in)
With R.M.G.B. unit 288 mm (11/32in) : OP
Tool 5 tools on the front (stationary type)+ 2 tools on the rear (X3 axis control)
5-Spindle sleeve holder Number of tools Front 5 tools
Rear 5 tools
Max. drilling capacity ø 23 mm (29/32in)
Max. tapping capacity M16XP2.0
Power driven att. Number of tools Cross milling: 4 tools
Cartridge type: At 2 position
Number of tools (type A) Angle adjustable power-driven tool: At 1 position (Front 3 tools + Rear 3 tools)
Number of tools (type B) B-axis controlled power-driven tool unit: At 1 position (Front 3 tools + Rear 3 tools)
Max. drilling capability Ø 10 mm (25/64 in)
Max. tapping capability M8xP1.25
Spindle speed Max. 6,000min-1
Drive Motor 2.2 kw
Rapid feed rate 36m/min (X1,Y1,Z1,X2,Z2), 24m/min(Y2,X3)
Main spindle indexing angle C-axis control
Main spindle speed Max. 7,000min-1
Main spindle motor 7.5kw(continuous)/11kw (10min./25% ED)
Coolant tank capacity 253 L
Dimension (W x D x H) 2,740 x 1,315 x 2,120 mm
Weight 4,300 kg
Power consumption 15.9 KVA
 

Backworking attachment SR-38 Type B

Max. chucking diameter Ø 38 mm (1-1/2in)
Max. length for front ejection 150 mm (5-7/8in)
Max. part projection length 70 mm (2-3/4in)
Back 8-spindle unit Number of tools 8 tools
Max. Drilling Capability Stationary tool: Ø 14 mm (35/64 in)
Power driven tool: 8tools
Max. Tapping Capability Stationary tool: M12xP1.75
Power driven tool: M6xP1.0
Power-driven att. spindle speed Max. 6,000min-1
Power-driven att. drive motor 1.0kw
Sub spindle indexing angle C-axis control
Sub spindle speed Max. 7,000min-1
Sub spindle motor 3.7kw(continuous)/5.5kw(10min/40%ED)

* Specifications are subject to change

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