12" X 40" TARNOW MODEL RUP28 PRECISION UNIVERSAL I.D./O.D.

Height of centers 150mm
Max. grinding length 1000mm
Max. grinding length 30 m/s
Max. external grinding diameter 280mm
in centers 125 kg
in chuck 20 kg
Wheelhead
Max. grinding wheel diameter 400mm
Min. worn grinding wheel diameter 260mm
Grinding wheel width 50mm
Grinding wheel bore diameter 127mm
Grinding wheel spindle speed 1560/1890 RPM
Swivel angel towards tailstock/workhead 30/30 Degrees
Total travel by means of manual drive 160mm
Additional travel of slide plane 160mm
Hydraulic rapid travel 60mm
Infeed per one handwheel revolution 50mm
Infeed per one minimum graduation on the handwheel 1mm
Feed-in ranges
Coarse 0.3-6mm/min
Finishing 0.3-3mm/min
Workhead
Swivel angle towards operator/opposite to operator 30/90 Degrees
Workhead taper No.4 Morse
Workhead bore diameter 22mm
Stepless speed range of special-type spindle 40-400 RPM
Internal grinding / attachment
(Attachment included in special equipment)
Max. ground bore diameter 200mm
Max. grinding length 120mm
Spindle speed range
a) PTSBb dia. 40 x 250 12,000-40,000 RPM
b) PTSBb dia. 70 x 250 6,000 - 20,000 RP
M
Cont. on

(cont.)
Table
Swivel angle towards wheelhead/operator for
L = 500mm 12 Deg.30'/5 Deg.
L = 1,000mm 10 / 3 Degrees
Table feed range 75 - 4,000 mm/min
.
Min. hydraulic travel 3mm
Parking time control range in extreme positions 0-10s
Electric Motors
Wheelhead drive
Power rating 5.5kW
Speed 3,000 RPM
Workhead drive
Power rating 0.75 kW
Speed 1,500 RPM
Hydraulic system pump drive
Power rating 1.1 kW
Speed 3,000 RPM
Internal grinding wheel drive
Power rating 1.1 kW
Speed 3,000 RPM
Wheel-Bearing-Feeding pump drive
Power rating 1.1 kW
Speed 1,500 RPM
Coolant pump drive
Power rating 1.1 kW
Speed 1,500 RPM
Tank Capacities
Coolant system 100 Litres
Hydraulic system
a) Bearing feeding system 25 Litres
b) Control and drive systems 70 Litres
Weight (approx.) L = 1,000mm 3,350 kg
Standard Equipment
Diamond holder, table-type (without diamond) 1
Wheelhead drive motor pulley 1
Arbor, with nut, for grinding wheel balancing 1
Workpieces receiving attachment
L.H. 1
R.H. 1
Cont. on page 3
Page 3 of 3
STANDARD EQUIPMENT (cont.)
Feeler instrument for accurate table swivel 1
Grinding wheel holder 1
Puller for grinding wheel holder 1
Centers for tailstock, with Morse Taper No.4
Special with nut 1
PZKa-4 1
Centers for tailstock, with Morse taper No.4
PZKf-4 2
PZKa-4 1
Hydraulic tail
Set of servicing spanners 12
Key for el. equipment cabinet 1
Fixing plate for wheelhead locking 2
Coolant tank, with magnetic separator 1
Fixing supports for table locking 2
Screws, with nuts, levelling base for
L = 500 10
L = 1,000 12
Electrical equipment and wiring, together with
220/380 V, 50 Hz motors 1 Set
Instruction manual 1
Cans with paint, of machine tool color 4

MOTOR SPECIFICATIONS

220 V