Approximately how much weight would this motor be able to "lift" vertically? Over 100 lbs?

Typically, you'd need to connect this to a lead screw or rack and pinion in order to convert the rotational motion into linear motion ("lifting"). Let's say you used a lead screw 5 turns-per-inch x .5" diameter. That lead screw with this motor properly driven would theoretically be able to lift a 750lb weight.

What is the pinout? I have red, yellow, green and blue wires. How does that map to a+- and b+-?

I don't recall the pairs by color on these, but you can tell by touching two wires together. Spin the spindle, it should spin freely. Touch two of the 4 wires together and try to turn the spindle again. If the spindle has resistance and harder to spin when touched together then those two wires are paired. It won't matter which you consider positive or negative of the two, since its DC, to my knowledge at least. Hope this helps.

cant read dimension from picture on here, but wanted to start milling the mounting plate before it arrives in 2 weeks, how can I get those specs?

The meeting services standard nema34 look up the standard. The shaft unfortunately is a 14 mm shaft with a key in it. I can find no 14 mm police online that already had a keyway in it. I am buying the keyway tool. If you order this motor others like it for a very small charged you can ship them to me I will put the keyway in it and send it to you. Probably going to be cheaper than trying to find a local machinist to do it

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Nema 34 Stepper Motor 6A 8.5Nm (1200 oz-in) 118mm Length for CNC Router Mill Lathe, Black

Nema 34 Stepper Motor 6A 8.5Nm (1200 oz-in) 118mm Length for CNC Router Mill Lathe, Black

Product ID: 80780885

Details

Brand
Speed
100 RPM
Voltage
36 Volts 500
Horsepower
100 Watts
Material
Alloy Steel

⚡36-500V Voltage

📏118mm Length

⚙️8.5Nm Torque

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€ 155.51

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Power Your Passion with Precision!

PRECISION ENGINEERING - Crafted with a robust steel body, this motor ensures durability and reliability for all your machining needs.
LIGHTWEIGHT YET MIGHTY - Weighing in at just 3.6kg, this powerhouse is designed for efficiency without compromising on strength.
UNMATCHED TORQUE POWER - Experience a staggering 8.5Nm (1204 oz-in) torque that elevates your CNC projects to new heights.
PERFECT FOR PROFESSIONALS - Ideal for CNC routers, mills, and lathes, this stepper motor is a must-have for serious makers and engineers.
VERSATILE VOLTAGE COMPATIBILITY - Compatible with 36V, 48V, and 500V systems, making it adaptable for various applications.

The Nema 34 Stepper Motor is a high-performance motor designed for CNC routers, mills, and lathes, featuring an impressive torque of 8.5Nm (1204 oz-in) and a compact length of 118mm. Weighing 3.6kg, it offers versatility with voltage compatibility ranging from 36V to 500V, making it an essential tool for professional engineers and hobbyists alike.

Specifications

ASIN	B077X9R2CW
Best Sellers Rank	#358,926 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #311 in Electrical Motor Controls
Brand	HobbyUnlimited
Brand Name	HobbyUnlimited
Customer Reviews	4.6 out of 5 stars 42 Reviews
Horsepower	100 Watts
Item Weight	3.6 Kilograms
Manufacturer	HobbyUnlimited
Speed	100 RPM
UPC	636824685644
Voltage	36 Volts, 500 Volts

Reviews

A**R

Works great, high torque.

Great stepper, I use it on my 4th axis CNC router. Never missed step.

2.01.2025

S**.

As advertised

A very quiet and strong motor, so far so good on 3 of 3.

20.04.2019

W**E

On time

Just what I ordered and will recommend the seller

13.01.2026

B**S

Quality product!

Using this for a CNC and it's got a ton of power and quality!

16.01.2019

D**.

Great motor

Works great. Super strong

7.11.2019

L**N

Works great but no documentation

There is no paper with the motor, or even a web link on the label. I had to guess the wiring. Another user on Amazon Answers helped. My motor is working wired as: Red-A+ Green-A- Yellow-B+ Blue-B-. Before trying that yourself, you should use an ohmmeter to make sure Red-Green and Yellow-Blue are connected internally.

16.08.2021

A**R

Not very happy

I ordered two, and one of them just does not feel right at all. Very disappointed 😔

6.01.2019

S**S

Runs warm but consistent

Had a Tormach 4th axis that came with a servo motor. Had to swap it out, this NEMA34 looked to fit (which it did) and is working well in service. Runs warm, but so far it is working.

26.02.2022

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