Introducing the HT1850 Hydraulic Weld-On Thumb by Gentec – built tough for large contractors. This 18" wide and 50" long thumb is designed for machines between 24,000lbs and 39,000lbs and weighs 600lbs. Constructed with four 1" thick AR400 Steel Tines in a ladder frame layout and reinforced with gussets, our HT1850 thumb is designed for increased strength and long-lasting durability. The double-sealed welded cylinder enhances reliability, and spherical bushings at the top of the cylinder protect it from side loading. The cylinder comes with a hydraulic cushion at the top of the stroke to protect it during retraction and has both hydraulic ports located at the top so your hydraulic hoses are safe and out of the way. Additionally, both cylinder pins and the thumb main pin are greaseable for easy maintenance. The main pin and main bushings are hardened for added durability.
Experience superior geometry with the HT1850. The thumb boasts a maximum extension angle of 115 degrees. Designed to minimize stowed dimensions, when fully retracted, the tines only extend 18" away from the edge of the excavator stick – meaning it won't get in your way when digging. The backplate measures 67 3/8”, and the hydraulic cylinder is included. The port size on the cylinders is larger to allow for faster cycling.
Maximize your investment
Invest in the HT1850 to maximize the capabilities of your excavator and get the job done faster and more efficiently. With 35 years of experience and a strong commitment to our company values, Gentec has become a trusted choice for more than 50,000 satisfied clients. As a family-owned business, we take pride in our products and prioritize your satisfaction. Choose the HT1850 Hydraulic Weld-On Thumb for a lasting investment that will make a difference in your projects for years to come.
18” wide, 50” long hydraulic thumb
Ideal for machines between 24,000lbs and 39,000lbs
Four 1” thick AR400 Steel Tines assembled in a ladder frame layout and with gussets
Double-sealed cylinder and spherical bushings for increased reliability
Both cylinder ports located at top of cylinder to prevent hose damage
Hydraulic cushion at the top of the stroke for cylinder protection
Greaseable pins and hardened main pin and main bushings for easy maintenance
115-degree maximum extension angle
Minimized stowed dimensions for optimal digging performance
67 3/8” backplate
Hydraulic cylinder included with larger port size for faster cycling
Replacement parts available
** PLEASE CHECK YOUR MEASUREMENTS BEFORE ORDERING. (LOOK UNDER "BIG DAVE" TAB FOR INSTRUCTIONS) CALL WITH ANY QUESTIONS OR IF YOU NEED HELP THE THUMBS CAN BE TRICKY TO ORDER CORRECT.
⚠ Pro Tip!If your excavator is equipped with a Pin-Grabber quick coupler, choose a longer thumb to ensure a suitable fit with your bucket.
Main Pin Diameter
Max. Extension Angle
Min. Operating Weight
Max. Operating Weight
Excavator Weight Class
22,500lbs to 39,000lbs
SAMPLE LIST ONLY
CX145, CX130, CX135SR, 9010
311C, 312C, 314C, E120B
130G, 120C, 135CRTS, 490D/E
Z110, Z120, Z130, Z135US
SK135SR, SK115SRDZ, SK120-IV, SK130-IV, ED150
PC120-6, PC128, P138, PC158
LS2650Q, 130LX, 135
160G, 160D, 160CLC, 590D
ZX180, Z160LC, EX150, EX160
SK150-IV, SK160LC, ED180, ED190
E160, EH160, EW160
Thumbs usually ship out within (3) days
Please follow these instructions when measuring. You want your "stick to tip" measurement to be as close to the thumb tine length as possible. GENTEC's mounting plates are very narrow so typically there is no problems with the mounting plate (exception is the very smallest class of mini excavator)
Please follow these instructions when installing your thumb.
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