Project Crane - Group E

It has still not been confirmed whether we are going to use a electric or hand-powered winch. If we do decide to go down the powered route, then a very good candidate is the GP23000. Below are the specifications of this product.

• Capable of 1043kg loading
• 12v DC
  
• weight 6.4kg
  
• Mechanical and Dynamic Brake
• Full-metal Planetary Gear-train
• Freespooling Clutch for Fast Wire Rope Payout
• High Efficiency Low Amp Draw Motor
• Commercial Grade Contactor Pre-mounted and Sealed Against the Elements
• Circuit Breaker Protected
• Durable Handheld Remote Switch on 15' Lead
• Cable Tension Plate
• £188 exc VAT
  

Also the performance of this Winch is listed below.

Line Pull (kg)	Line Speed (m/m)	Motor Amps 12V
0	4.7	8
227	3.8	30
454	3.0	60
680	2.1	90
816	1.8	108
1043	0.5	140

Dimensions;
The problems with using an electric-winch are;

• where will the power come from? battery powered?
• how long will this winch last under ~maximum loading?
• can the cost of this winch be justified? (£188 exc VAT, £220.90 incl VAT )
  
• how long will it take to actually lift the 1000kg weight?

all these questions will have to be discussed before anything regarding this winch is finalised...