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JHU-2706 Cylindrical Grinder

Key Features

• Nitride hardened, super-finished spindle

• Variable speed workhead rotates 90° CCW

  and 30° CW

• Rapid advance and retract of wheel head

  allows for quicker setup and check of

  grind-in dimensions

 

• Hydraulically driven longitudinal traversal

• Manual infeed for H model; manual and

  automatic infeed with plunge cycle on

  NC model

• Advanced Hydrostatic Lubrication System

General Specifications:

Machine Capacity

Max grinding length 23.6” (600 mm)
Max work swings 10.6” (270 mm)
Max. load between centers 154 lbs (70 kg)
Max. external grinding diameter 9.8" (250 mm)

Grinding Wheel

O.D. x width x I.D. 16" x 2" x 5" (405 x 25~50 x 127 mm)
Speeds (2 range pulley) RPM 1500, 1600 RPM

Workhead Spindle

Swivel angle 120° (-90°CCW, +30°CW)
Center taper MT:4
Spindle speeds (variable) RPM 11~500
Max. load of spindle (tool holder included) -

Tailstock

Taper MT:4
Travel 1.18" (30 mm)

Table

Swivel angle -11°, +6°
Traverse speed 1.96"~157"/min (50~4000 mm/min)
Auto. reciprocate min. stroke 0.31" (8 mm)
Feed of one turn of handwheel (2-step) 0.79" (20 mm)

Motor

Wheel spindle 5 HP / 4 P (3.75 kw)
Workhead spindle 0.5 HP / 4 P (0.4 kw)
Hydraulic pump 2 HP / 4 P (1.5 kw)
Wheel spindle lubrication pump 1/4 HP / 4 P (0.2 kw)
Coolant pump 1/4 HP / 4 P (0.2 kw)
Internal grinding spindle 2 HP / 2 P (1.5 kw)
X servo motor 1.3 HP (1 kw)
Y servo motor 2 HP (1.5 kw)

Tank Capacity

Wheel spindle lubricant tank 5.8 Gallon (22 L)
Hydraulic fluid tank 15.9 Gallon (60 L)
Coolant tank 26.5 Gallon (100 L)

Machine Weight

Net weight 6,930 lbs (3,150 kgs)

Dimensions

Packing Dimensions 110" x 65" x 72" (2800 x 1650 x 1820 mm)

OPTIONS AND ACCESSORIES:

 

Internal grinding attachment ( Hinged type )

Diamond tool holder for internal and external

  grinding wheel dressing ( sideway open type )

Angular truing device

Radius truing device

Cam-locked type driving dog

Work holders

2-Point steady rest ( Φ10~130 )

 

 

3-Point steady rest

Adjustable 3-jaw scroll chuck 7" ( 178 mm )

Adjustable 4-jaw scroll chuck 8" ( 200 mm )

Magnetic coolant separator 60L/min

Paper filter 60L/min

Wheel balancing stand & arbor