580W vs. 620W: The Difference Is More Than 40 Watts
Same panel size, 40 watts apart, two cents per watt apart in price. Which should you buy? …
Learn More →News
Company updates, product news and industry insights from E21.
One 36-Ton Excavator, 214 Photos
214 photos of one machine: what we shoot, how we shoot it, and why. This is our inspection…
Learn More →
We Spent Nine Days Sorting This Batch of Down Jackets
Out of 40,000 pieces of used winter clothing, 23,000 made the export grade. Nine days, twe…
Learn More →
Used Excavator Slewing Bearings: The Play Must Not Exceed This Number
I have an iron rule for excavators: no machine with slewing bearing play over 2 mm. In Mar…
Learn More →
Used Concrete Pump Trucks: Boom Cracks Are a Red Line
I won't take a pump truck with a crack history in the boom, no matter how pretty the repai…
Learn More →
Buying a Used Crawler Crane? Don't Ask the Price — Check the Load Moment Limiter First
In February I inspected a 55-ton crawler crane at the Panyu warehouse — fresh paint, price…
Learn More →
How We Inspect a Used Truck-Mounted Crane: Outriggers and Winch Matter Most
In Dongguan I looked at two 8-ton truck-mounted cranes. One outrigger sagged 9 mm over a 3…
Learn More →
Used Motor Graders: It's All About the Blade and the Tandem Drive
A 2016 XCMG GR165: half the circle's brass bushings shattered, glitter in the tandem drive…
Learn More →
Before You Lift a Used Truck Crane, Check These Four Spots
A 2015 25-ton truck crane, three hours of inspection: boom sliders worn 4 mm off-center, 2…
Learn More →