COST COMPARISON OF VFD/MECHANICAL AND HYDRAULIC DRIVE

(Feeder Design Power Requirements same for both drives. Drive sizes selected by drive manufacturers.)

For Crusher Apron Feeder------D8N-96-36.1-23.3-500VFD


DESCRIPTION

VFD/MECHANICAL DRIVE

HAGGLUNDS HYDRAULIC

Electric Motor (s) 2 x 186Kw (Total 372Kw) 2 x 261Kw (Total 522Kw)
Reducers/Hydraulic Motor 2 – SEW Eurodrive XP15 1 – Hagglunds MB2400
Design Running Torque 261,964 Lb.Ft. (355.1 kN.m) 261,964 Lb.Ft. (355.1 kN.m)
Design Starting Torque 523,928 Lb.Ft. (710.2 kN.m) 523,928 Lb.Ft. (710.2 kN.m)
Tonnage (MTPH) 7107 7107
Speed (Maximum) 73.9 FPM (0.376 m/s) 73.9 FPM (0.376 m/s)
Headshaft RPM 9.80 9.80
Design HP 365Kw 365Kw
Selected Drive Power 374Kw 522Kw
Ratio--Installed Power
to Design Power
1.025 x Design Power 1.430 x Design Power
Feeder Price $ 642,925.00 plus VFD $ 1,018,353.00 plus Starter
VFD/Starter $ 83,368.00 for two By Customer
Piping/Hoses Not Required $ 47,000.00 supply only
Drive-Commissioning Spares Not Required $ 3,358.00
Drive-Two (2) Year Spares $ 800.00 $ 28,675.00
Drive-Capital Spares $ 64,259.00
==========
$ 393,800.00
===========
TOTAL

$ 791,352.00


(Feeder, VFD, Drive)

$ 1,491,186.00 (Plus Starter)


(Feeder, Hydraulic Drive Piping supply)
POWER USAGE @100% 8,928 KWH/Day 12,528 KWH/day

Prices shown are in US Funds.