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Discussion Starter · #1 · (Edited)
Forklift motor questions, help please

UPDATE- a baker pallet jack has come my way,the motor is a Baker Mod#5bcxjb427 rpm is 2600/2100,class H, i think the amps are 145/107, would this work ?


I'm looking at Clarke Forklifts and Caterpillar, they both have a separate drive motor and one that powers the hydraulic pump. The pump motors look to be the right size, any ideas here ? the one i am loking at using is a 36/48 volt 2050 RPM 12.7 KW, max RPM 6500 amp 315. my donor car is a metro
 

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Re: Forklift motor questions, help please

I'm looking at Clarke Forklifts and Caterpillar, they both have a separate drive motor and one that powers the hydraulic pump. The pump motors look to be the right size, any ideas here ? the one i am loking at using is a 36/48 volt 2050 RPM 12.7 KW, max RPM 6500 amp 315. my donor car is a metro
Hi uni,

http://www.diyelectriccar.com/forums/showthread.php/using-forklift-motor-and-choosing-good-7598.html

I know it is a long thread. But we've addressed your question multiple times. And there is a search function for this forum. Use it and you will likely find a lot of info on pump motors, and a good chance even about the specific motors you have in mind.

WTH, here I go again. These are lift pump motors. They are rated for intermittent duty whereas traction motors are rated for continuous (or one hour) duty. Pump motors are likely unidirectional. Is it correct for your application? Pump motor will likely have an internal spline drive. Can you couple it to your drive? Most of these pump motors are series wound and intended for rated voltage (36/48) always seeing a sizeable load from the pump. If you use it at higher voltage you need to beware of overspeed at light load.

But pump motors are good DC motors and can work very well for EV drives if you get the details worked out.

Regards,

major
 

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Discussion Starter · #3 ·
Froklift Motor RPM aquestion, help please !

im looking at a forklift motor below is the specs, can anyone offer me some incite as to the RPM and HP and if this motor will be usable ?
its a 36 or 48 volt motor

36 volt 10.4 HP 1050 RPM 330 AMP
48 volt 16.3 HP 1500 RPM 350 AMP
 

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Re: Froklift Motor RPM aquestion, help please !

im looking at a forklift motor below is the specs, can anyone offer me some incite as to the RPM and HP and if this motor will be usable ?
its a 36 or 48 volt motor

36 volt 10.4 HP 1050 RPM 330 AMP
48 volt 16.3 HP 1500 RPM 350 AMP
Did you read my reply to your other forklift motor thread? http://www.diyelectriccar.com/forums/showthread.php?p=223218#post223218 It helps if you keep similar questions about the same subject in a single thread.

major
 

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Re: Forklift motor questions, help please

We're using a 48V Clark forklift motor from a Clark CTM 16 S forklift.
The forklift used two traction motors, but we're using one of them. It's only 5.2 kw, but it has the torque required to move a heavy forklift with a heavier load around on a shop floor.
We have for instance started the car from a standstill in 4th gear without any hassle at all.
You're not going to be able to use the truck's controllers though, but if you get a pot-box from the truck, be sure to keep it!
 

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Discussion Starter · #7 ·
In the search for the right "deal" I have come across a complete Baker Pallet Jack, its rated at 5000 lbs, the motor Model# is 5BCXJ427 it is a class H rpm is 2600/2100 amps 145/107 thats all i can read on the motor tag its about 8" diameter and about 13" long. I am looking to build a "low budget" conversion using a GEO Metro, my guess is that this motor is a 12/24 volt but cant tell for sure from the tag, any insite or help hear would be great
 
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Not bad phone photos. Interesting drive end. Mounting may be a tough cookie but for a small car it may do just fine. What are your expectations and needs? Budget?

Pete :)
 

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Discussion Starter · #14 ·
Modest expectations, 35 to 45 mph, range would be nice if i could get towards 40 miles, as for mounting i got a great machine shop i can machine a new motor end to facilitate mounting, just want it to be super low buck for a first EV endeavor, im getting the complete pallet jack, any ideas or thoughts ?
 
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Well if you can make an end plate that would be good. I have no experience building an adaptor plate. I just purchased mine. Distance at low speeds are possible if you can carry the weight as I am assuming your going with lead acid batteries. 6 volt floodies are good but be sure they are for the golf cart and not the marine batteries. Marine batteries suck. What voltage do you plan on using? Id say no less than 72 volts. 96 would be better. I think your motor would be ok with 96 volts. Don't need to go fast but having higher voltages helps. More volts available less amps needed. Use your transmission. I use a clutch. There is plenty of debating on this issue. Some cars shift fine without the clutch some don't. Did my first EV for $3200 including the batteries and car. Been working in the MG today. Getting it wired up for the new controller and lithium batteries.

Pete :)

There is lots to see and learn. Some just plain garbage too. Have a look over at EVDL for ideas and more information. I started there. Ended here and still going.
 

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Discussion Starter · #16 ·
forklift motor guru needed

OK, i am looking at a forklift drive motor, it is 36/48 volt it has 57 commutator bars,it has two ratings open and closed
open- at 48 volts, 1173 rpm,449 amps
closed- at 48 volts, 1673 rpm, 242 amps
is is a class H, has four brushes holders with 2 brushes per, bi-directional,
is about 11" dia. and 19" long
stall torque is 373 ft lbs, full load volts is 449,
this is going in to a Metro i got lots of other data
can some one give me a thought or two as to their thoughts on the use of this motor ?, please ?
 

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Re: forklift motor guru needed

Take and post pictures of the comm, brush assembly. Weigh it. post pictures and wait for some of the experts to comment. If you have time, read the sticky at the top of this forum, especially the lower numbered posts.

my $.02: sounds like a good candidate.
 

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Re: forklift motor guru needed

OK, i am looking at a forklift drive motor, it is 36/48 volt it has 57 commutator bars,it has two ratings open and closed
open- at 48 volts, 1173 rpm,449 amps
closed- at 48 volts, 1673 rpm, 242 amps
is is a class H, has four brushes holders with 2 brushes per, bi-directional,
is about 11" dia. and 19" long
stall torque is 373 ft lbs, full load volts is 449,
this is going in to a Metro i got lots of other data
can some one give me a thought or two as to their thoughts on the use of this motor ?, please ?
Hi uni,

This is the 3rd or 4th thread you've started concerning a forklift motor. Please use the sticky thread or at least keep yours confined to a single thread.

The data you list is inconsistent. No forklift I know about has "full load volts is 449".

A brand name and picture would be nice, including a picture of the nameplate.

From what I see, this would likely be a very nice motor. Right for a Metro? Depends on the performance desired and rest of the system.

Regards,

major
 

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Discussion Starter · #19 ·
Re: forklift motor guru needed

Major-
Sorry, being a newbie here and all each post is a little different question, but in the future i will try to adhere to the norm.
 

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Re: forklift motor guru needed

An 11-inch forklift motor has to be close to 300 pounds... that may be a little too much nose weight for the Metro. It's not much heavier than the stock engine, but that means you will not be able to put ANY batteries up front... even with stiffer springs, the body may not hold up. Mine cracked the unibody in two places when I started loading it up with batteries....


OK, i am looking at a forklift drive motor, it is 36/48 volt it has 57 commutator bars,it has two ratings open and closed
open- at 48 volts, 1173 rpm,449 amps
closed- at 48 volts, 1673 rpm, 242 amps
is is a class H, has four brushes holders with 2 brushes per, bi-directional,
is about 11" dia. and 19" long
stall torque is 373 ft lbs, full load volts is 449,
this is going in to a Metro i got lots of other data
can some one give me a thought or two as to their thoughts on the use of this motor ?, please ?
 
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