The ESCO line of thumb products complement
ESCO buckets and provides more versatility.
The ESCO thumb package offers a choice of
products to handle all material retention needs
and makes any excavator more productive.
ESCO offers both rigid and hydraulic thumbs to
meet any need.
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RC Rigid Thumb |
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Features & Benefits |
Independent thumbs are an excellent tool for a variety of material handling
applications. RC series thumbs are available for 10 to 40 metric ton class
machines.
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Versatility
- Three and four tine options
available to mesh with more
ESCO buckets
- 3 working positions: 68°, 86°, and
112°
- Large serrated teeth provide more
gripping power
- Integrated design allows thumb to
be stored as one unit
- Independent thumb does not
interfere with bucket lugs or
coupler
Lower Operating Costs
- Independent thumbs are more
economical than hydraulic thumbs
- Repositioning thumb body only
requires moving a single pin
keeping downtime to a minimum
Reliability
- High grade T1 steel is used in all
critical components for increased
strength
- Heavy steel construction
throughout for increased durability
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HydraulicThumbs |
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Features & Benefits |
Hydraulic thumbs substantially increase an
excavator’s versatility. Hydraulic thumbs allow the
operator to place an object in the clamp, then
move precisely. ESCO hydraulic thumbs are
available in non-link and linkage style to meet
any clamp rotation needs. Hydraulic thumbs are
designed for the specific bucket setup to assure
meshing without interference through the full
rotation of the thumb.
Hydraulic Thumb Styles
- Universal Hydraulic (UH) – an economical option to a standard hydraulic thumb and with lower lead time
- Non-Linkage Style – the hydraulic cylinder is pinned directly to the thumb with thumb rotation of approximately 120°
- Non-Linkage Style for Couplers – thumb provides consistent 120° rotation with coupler
- Linkage Style – the progressive linkage between the cylinder and thumb gives the ESCO hydraulic thumb more complete rotation, up to 180°
- Linkage Style for Couplers – the progressive linkage between the cylinder and the thumb provides 180° rotation and is designed for use with a coupler
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- Heavy gussets and reinforcements make the thumb stronger and longer lasting
- Serrated teeth with webbing for more gripping action
- Large diameter hardened pins and bushings not only provide more life, but also allow easy thumb rebuild
- Thumbs are engineered for individual buckets (except UH thumbs), so there’s no interference
- Heavy-duty thumb stop also protects cylinder from damage
- Cylinders utilize heavy-duty rods and are cushioned at both ends for longer lasting problem-free cylinders
- Thumbs retract close to boom when not in use to allow digging visibility
- Most non-linkage hydraulic thumbs can be upgraded to full-linkage to offer more product flexibility
- High-grade T1 steel is used in critical components to increase service life and provide greater strength
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Bi-directional Hydraulic Kits for Thumbs |
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Features & Benefits |
ESCO offers high quality machine specific hydraulic kits for excavators. ESCO
hydraulic kits are designed specifically for operating thumbs. There are no
unnecessary components, and thumbs will operate at full hydraulic efficiency.
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- Heavy wall (.20") tubing with welded JIC fittings, 3/4" I.D.
- Extra heavy-duty cast clamp assemblies grip tubes securely for demanding applications – no rubber bushings to loosen and wear out
- Premium quality hoses with guards as required
- High pressure shut off
- Either joy stick or foot pedal controls
- Kits include all mounting hardware, brackets, tubes, hoses and various controls
- Complete documentation for installation and parts list
- Full technical support available
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