Thumbs

The Geith Universal Thumb provides an efficient and affordable method of handling rocks, brush, tree stumps, pipes and other hard-to-maneuver materials.

  • Custom designed thumb
  • Reinforced pivot areas provide extra strength
  • Load holding valve to prevent slippage
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Product Description

Easi-Klamp Manual Thumb (EK)

Geith’s EK series thumbs provide an economical and safe solution to solve job-site material handling needs.Available for immediate shipping for a wide range of mini-excavators, backhoes, and large excavators.

  • Quick and easy installation on dipper stick
  • Welded on base plate with no need to remove main pin for installation
  • No additional hydraulics or modifications required
  • Three pre-set mechanical thumb positions for application versatility
  • Over sized pivot pin prevents twisting
  • One piece base plate ensures overall strength
  • Serrated edge holds material secure to bucket for superior loading

Easi-Klamp Hydraulic Thumb

The Geith Universal Easi-Klamp Hydraulic Thumb provides an economical, easy to install, solution to your hydraulic thumb applications. We offer a wide range of fixed widths and lengths to best fit your excavator and meet your application’s needs.

  • Quick and easy installation on dipper stick
  • Weld on base plate with no main pin removal during installation (HK Model)
  • Hydraulics Enable controlled movement of thumb
  • Thumb easily retracts to the stick or can be removed completely when not in use
  • Load holding valve helps prevent slippage
  • Serrated edge holds material secure to bucket for superior material handling
  • Oversized high profile pivot pin prevents twisting
  • AR 400 steel throughout provides strength, durability, and abrasion resistance
  • Heavy duty cylinder for the most demanding applications
  • Reinforced pivot area provides extra strength

Auto-Klamp Mechanical Thumb (AK)

The Geith Universal Auto-Klamp Mechanical Thumb provides an economical and safe solution to solve job-site material handling needs with the added benefit of a unique auto slide system. The auto slide system enables the operator to easily release the thumb to one of the multiple pre-set positions and, when done, fold the thumb back to its store position by turning a lever and curling in the bucket. Available for immediate shipping for a wide range of excavators.

  • Automatically folds and stores away when not in use
  • Quick and easy installation
  • Weld-on base plate with no need to remove main pin during installation
  • No additional hydraulics required
  • Auto-slide system for fast thumb deployment
  • AR 400 steel throughout provides strength, durability, and abrasion resistance
  • High strength mounting pins and one piece base plate
  • Over sized high profile pivot pin prevents twisting

Hydraulic Klamp Hydraulic Thumb (HK)

The Geith HK Universal Hydraulic Thumbs provide an economical, easy to install solution for hydraulic thumb applications. Available for a range of fixed widths and lengths to fit mini and full size excavators and backhoe loaders from 9,000 to 65,000 pounds (4-30 tonnes).

  • Quick and easy installation on dipper stick
  • Welded on base plate with no need to remove main pin for installation
  • Hydraulics enable controlled movement of thumb
  • Thumb easily retracts to the stick or can be removed completely when not in use
  • Serrated edge holds material secure to bucket for superior loading and safe material handling
  • Over sized high profile pivot pin prevents twisting
  • Heavy duty cylinder for the most demanding applications
  • Reinforced pivot area provides extra strength

MX Hydraulic Thumb (MXHT)

The Geith Mini-Excavator Hydraulic Thumbs are available to fit excavators ranging from 2,000 to 20,000 pounds (1-10 tonnes). Featuring both direct and coupler mounted models, these thumbs can be installed on a wide variety of mini-excavators. With rotation up to 133 degrees, this family of thumbs will increase your productivity and allow you to safely handle stumps, brush, rocks, pipes, and more.

  • High strength universal base plate is compatible with most excavator models
  • Induction hardened and inertia welded cylinder with hydraulic cushioning ensures smooth and constant operation
  • Main pin mounting for superior control and accuracy
  • Hydraulics enable controlled movement of thumb
  • Serrated edge holds material secure to bucket for superior loading
  • High strength material provides durability and toughness, even under the most demanding conditions
  • Heat treated and hardened pivot bearings and pins increase joint life and allow for minimum maintenance

Main Pin Hydraulic Thumb (HT)

The Geith HT Main Pin Hydraulic Thumbs are custom designed to match the accompanying Geith bucket and coupler with a wide range of excavators and backhoe loaders. With variable rotations up to 140 degrees, these thumbs provide exceptional control for your job-site material handling and demolition needs.

  • Hydraulics enable precise movement and positioning of thumbs
  • Excellent for demolition and land clearing applications
  • Manufactured to work with various bucket widths
  • Provides up to 140 degrees of rotation
  • Thumb retracts when not in use
  • Serrated edge holds material secure to bucket for superior loading
  • Chromed cylinder rod for long and durable life
  • Heavy duty cylinder for the most demanding applications
  • Heat treated and hardened pivot bearings and pins for maximum life and minimum maintenance
  • Greasing points on all pivot areas to lubricate and protect moving parts

Progressive Linage Hydraulic Thumb (PL)

The Geith PL Progressive Linkage Hydraulic Thumbs offer maximum rotation and versatility and are custom built to match most Geith buckets and excavators from 24,000 to 100,000 pounds (11-45 tonnes). Increased rotation up to 180 degrees improves pick up and placement of material closer to the excavator. The thumb follows the bucket tip through an extended range of motions providing greater grabbing ability.

  • Universal Linkage pivot system allows easy installation on any excavator arm without removing dipper arm linkage
  • Thumb rotation of 180 degrees to match bucket working cycle provides increased flexibility in all job-site applications
  • Strong, rigid skeletal structure increases torsion resistance
  • Built-in linkage positional stop protects thumb cylinder
  • Lock-up pin for storage when not in use adds safety and cylinder protection
  • AR 400 steel provides strength, durability, and abrasion resistance
  • Induction hardened and chromed cylinder rod for long and durable life
  • Heavy duty cylinder for the most demanding applications
  • Heat treated and hardened pivot bearings and pivot pins for maximum life and minimum maintenance
  • Greasing points on all pivots areas to lubricate and protect moving parts

 

TECHNICAL SPECIFICATIONS

Thumbs –

Machine
Weight
ModelDescriptionThumb Width
in (mm)
Weight
lb (kg)
14,000-22,000 lbsEK12A012Mechanical weld-on, to work w/out a coupler, 2 fingers12" (305)221 (100)
14,000-22,000 lbsEK12L012Mechanical weld-on, to work w/ a coupler, 2 fingers12" (305)269 (112)
14,000-22,000 lbsHK08R042Hydraulic weld-on, to work w/out a coupler, 2 fingers8" (201)239 (108)
14,000-22,000 lbsHK052R15Hydraulic weld-on, to work w/ a coupler, 2 fingers16" (413)277 (126)
14,000-22,000 lbsMXHT6DMHydraulic main-pin, to work w/out a coupler, 2 fingers16.1" (410)276 (125)
14,000-22,000 lbsMXHT6QHHydraulic main pin, to work w/ a coupler, 2 fingers16.1" (410)324 (147)
2,000-4,000 lbsMXHT1DMHydraulic main-pin, to work w/out a coupler, 2 fingers6" (139)38 (17)
2,000-4,000 lbsMXHT1QHHydraulic main pin, to work w/ a coupler, 2 fingers10" (254)48 (22)
4,000-6,000 lbsMXHT2DMHydraulic main-pin, to work w/out a coupler, 2 fingers13" (330)137 (62)
4,000-6,000 lbsMXHT2QHHydraulic main pin, to work w/ a coupler, 2 fingers13" (330)143 (65)
6,000-8,000 lbsEK08A008Mechanical weld-on, to work w/out a coupler, 2 fingers8" (203)62 (28)
6,000-8,000 lbsMXHT3DMHydraulic main-pin, to work w/out a coupler, 2 fingers13.0" (330)137 (62)
6,000-8,000 lbsMXHT3QHHydraulic main pin, to work w/ a coupler, 2 fingers13.0" (330)143 (65)
8,000-12,000 lbsEK10A012Mechanical weld-on, to work w/out a coupler, 2 fingers12" (305)92 (42)
8,000-12,000 lbsHK08-3208Hydraulic weld-on, to work w/out a coupler, 2 fingers8" (201)219 (99)
8,000-12,000 lbsHK08-4215Hydraulic weld-on, to work w/ a coupler, 2 fingers16" (413)257 (117)
8,000-12,000 lbsMXHT4DMHydraulic main-pin, to work w/out a coupler, 2 fingers14.0" (355)201 (91)
8,000-12,000 lbsMXHT4QHHydraulic main pin, to work w/ a coupler, 2 fingers14.0" (355)201 (91)
10,000-19,000 lbsEK12A012Mechanical weld-on, to work w/out a coupler, 2 fingers12" (305)221 (100)
10,000-19,000 lbsEK12L012Mechanical weld-on, to work w/ a coupler, 2 fingers12" (305)269 (122)
10,000-19,000 lbsEK12CASE Mechanical weld-on, to work w/out a coupler, 2 fingers12" (305)221 (100)
19,000-25,000 lbsAK12-15AMechanical weld-on, to work w/out a coupler, 3 fingers15" (381)700 (318)
19,000-25,000 lbsAK12L015Mechanical weld-on, to work w/ a coupler, 2 fingers15" (381)750 (340)
19,000-25,000 lbsHKAL4811Hydraulic weld-on, to work w/out a coupler, 2 fingers11" (277)676 (306)
19,000-25,000 lbsHKAL4824Hydraulic weld-on, to work w/out a coupler, 4 fingers24" (604)797 (362)
19,000-25,000 lbsHKAL4824LHydraulic weld-on, to work w/ a coupler, 2 fingers24" (604)856 (388)
22,000-30,000 lbsAK12-15AMechanical Weld-on to work w/out a coupler, 3 fingers
15" (381)700 (318)
22,000-30,000 lbsAK12L015Mechanical Weld-on to work w/ a coupler, 2 fingers
15" (381)750 (340)
22,000-30,000 lbsHKAL4811Hydraulic Weld-on to work w/out a coupler, 2 fingers
11" (277)675 (306)
22,000-30,000 lbsHKAL4824Hydraulic Weld-on to work w/out a coupler, 4 fingers
24" (604)797 (362)
22,000-30,000 lbsHKAL4824LHydraulic Weld-on to work w/ a coupler, 2 fingers24" (604)856 (388)
30,000-40,000 lbsAK16-30ASMechanical Weld-on to work w/out a coupler, 3 fingers
18" (457)1101 (499)
30,000-40,000 lbsAK16L30AMechanical Weld-on to work w/ a coupler, 2 fingers
24" (610)1271 (577)
30,000-40,000 lbsHKAL5411Hydraulic Weld-on to work w/out a coupler, 2 fingers
11" (277)696 (316)
HKAL5424Hydraulic Weld-on to work w/out a coupler, 4 fingers
24" (607)826 (375)
30,000-40,000 lbsHKAL5424LHydraulic Weld-on to work w/ a coupler, 2 fingers24" (607)906 (411)
40,000-50,000 lbsAK16-30BMechanical Weld-on to work w/out a coupler, 3 fingers
18" (457)1137 (516)
40,000-50,000 lbsAK16-30CMechanical Weld-on to work w/out a coupler, 3 fingers
24" (610)1273 (577)
40,000-50,000 lbsAK16L30CMechanical Weld-on to work w/ a coupler, 2 fingers
24" (610)1332 (604)
40,000-50,000 lbsHKAL5811Hydraulic Weld-on to work w/out a coupler, 2 fingers
11" (277)714 (324)
40,000-50,000 lbsHKAL5824Hydraulic Weld-on to work w/out a coupler, 4 fingers
24" (607)844 (383)
40,000-50,000 lbsHKAL5824LHydraulic Weld-on to work w/ a coupler, 2 fingers24" (607)933 (423)
50,000-66,000 lbsAK16-30DMechanical Weld-on to work w/out a coupler, 3 fingers
24" (610)1298 (589)
50,000-66,000 lbsAK16L30DMechanical Weld-on to work w/ a coupler, 2 fingers
24" (610)1350 (612)
50,000-66,000 lbsHK126312Hydraulic Weld-on to work w/out a coupler, 2 fingers
12" (304)983 (446)
50,000-66,000 lbsHK126324Hydraulic Weld-on to work w/out a coupler, 4 fingers
24" (606)1232 (559)
50,000-66,000 lbsHK126324LHydraulic Weld-on to work w/ a coupler, 4 fingers24" (608)1370 (621)
66,000-80,000 lbsEK30A030Mechanical Weld-on to work w/out a coupler, 3 fingers30" (761)1372 (622)


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