Different lifting weight in differnt lifting height for mini construction crane

Customer: Capacity 500 Kg. With Single cable
220v 50hz.
380v 50Hz.
Lifting height 60M (single cable)
Would you please say us the running speed M/MIN this mini construction crane has?

RAMHOIST: 14m/min

Customer: We have three questions:
1, With MCC10 can you lift 500 kg with sigle cable
2, With MCC10 can work in 60 mts lifting 500 kg
3, Would you please send us the FOB price of  MCC10
We want to buy 50 equipments.-

RAMHOIST: 
1, yes, within lifting height 20m
2, it is feasible in theory but can not reach in the reality, As when the lifting height becomes longer, the lifting weight becomes weaker.
3, need to check your actual lifting height and weight then i will offer accordingly, thanks

Customer: Would you please say us if you produce any small crane to work with 500 K in Height of 40 or 60 meters.-

RAMHOIST:we need use 1500KG electric winch, in single cable it can lift 750KG, and in the condition of 40m, no problem to lift 500KG,  but still do not suggest you to lift in the condition of 60m
need to make bigger frame than previous 1T

Customer: Would you please say us the diameter of cable the equipment of 1500 kg .Electric winch in condition of 40M ?
Would you please say us the speed of elevation.

RAMHOIST: Diameter 7mm wire rope
Speed 8m/min

Customer:On the another hand, would you please send us pictures of electric hoist of crane model MCC05.- 

RAMHOIST:below is electric hoist of crane model MCC05

Customer: Thanks a lot for your reply.-
1, Would you please quote MCC10 WITH 1500KG ELECTRIC WINCH, SIGLE CABLE, CAPACITY 750KG, WORKING HEIGHT 40MTS. WIRE ANTI-SPIN 7MM – SPEED 8M/MIN.
In MCC10 WITH 1500KG ELECTRIC WINCH model, would you please say us if the  electric winch could be 220V/50hz. What about 380V/50hz.?
We want to buy 30 units to can see the performance in our market  
2, About MCC05 model would you please say us the maximum height that this equipment can work. We want to this equipment can work in 50mts

RAMHOIST:1,220V/50hz    235 USD/unit (FOB china)
380V/50hz.   230 USD/unit (FOB china)     
2, It can work in 50mts but the lifting weight is about 200KG-300KG in this height 

Customer: 1, Would you please say us the maximum height that the MCC05 can work with 500 kg.
With 500KG the equipment works with single cable or double cable.  
2, Would you please say the price of  MCC05  220V 50Hz  
3, Would you please say the price of  MCC05  380V 50Hz  
We want to buy 30 units to can see the performance in our market

RAMHOIST: 1, Standard 6m in double cable
2, 140 USD
3, 140 USD

Customer:Thanks a lot for your reply. But we need more work  height.- If we put 65 meters of wire anti spin 7mm to MCC10 with 1500 kg electric winch model , would you please say us the work capacity in 60 meters, 50 meters, 30 meters and 20 meters.- RAMHOIST:
60 meters,  300KG
50 meters,  400KG
30 meters,  600KG
20 meters. 750KG above is based on single cable 

Customer: We decided that 50 meter 400 kg single cable is the better option to us.-
But in our market we have to compete with a crane faster. Would you please say us if you can put an electric winch faster, approximately 20 meter/ minute. 

RAMHOIST: it's speed can reach 16m/min in 50HZ, while it is 16*1.2=19.2 m/min in 60HZ in your country, very close to 20m/min. 

Customer: The reason for our consultation if you have a faster electric hoist is because here we have to compete with an electric crane with those characteristics. Below is Photo and technical data.

RAMHOIST:Below hoist can work with 22m/min (50HZ) -------22*1.2=26.4m/min (60HZ) but the lifting capacity is 200KG in 25m single cable.