Best Weld On Thumb For Excavator: Compare 7 Weld-On Models

#1 · Best Overall

1. Titan Attachments 36-inch Thumb

• Weight: 137 lb
• Material: Steel

Best for: 36-inch bucket coverage.

Why it ranks #1: Its stated fit covers buckets up to 36 inches, and it pairs 5/8-inch steel with 1/2-inch teeth bars and a fold-back design.

Compatibility with backhoe buckets up to 36 inches gives this Titan Attachments thumb a clearly stated fit range for wider bucket setups. Its 5/8-inch heavy-duty steel is plasma cut for tight tolerances, while the 1/2-inch teeth bars and 3/8-inch body plates specify the assembly’s component thicknesses.

The listing defines bucket capacity as up to 36 inches, measured from boom to teeth with the bucket at 90 degrees, giving buyers a specific fit-check method. Plasma-cut 5/8-inch steel supports the heavy-duty assembly, while 1/2-inch teeth bars and 3/8-inch body plates describe other major components. Installation involves welding the baseplate to the boom, then pinning on the thumb and gusset. Its folding design moves it out of the way after use, and the thumb is removable.

Skip it if you have a narrower bucket and want a smaller thumb; the Titan Attachments 24-inch folding model has a shorter tine length.

A candidate for operators with buckets measuring up to 36 inches by the specified boom-to-teeth method, especially when folding clearance matters. Its 137-pound weight and weld-on baseplate require installation planning and suitable handling.

Listed on Amazon as: 36" Extreme Weld On Backhoe Thumb Hoe Clamp 5/8" Steel Plate Assembly Adjustable

#2 · Thickest Plate

2. Titan Attachments 32-inch Extreme Thumb

• Weight: 125 lb
• Material: Alloy Steel

Best for: Heavy-duty 32-inch clamp work.

Why it ranks #2: The 32-inch teeth bars and 5/8-inch tine plates suit larger jobs, while plasma-cut parts and adjustable, removable teeth bars add flexibility.

A 32-inch teeth bar paired with 5/8-inch tine plates gives the Titan Attachments Extreme thumb a broad, substantial gripping assembly for handling larger material. Its adjustable teeth bars let operators tailor the clamp position, and the removable construction offers a way to take the thumb off when the job changes.

The 32-inch teeth bar provides a broad contact span, while 5/8-inch tine plates and 3/8-inch body assembly plates specify the steel thicknesses across key components. Adjustable teeth bars let the operator change the gripping arrangement for different material, and the easily removable assembly can suit changing attachment needs. Plasma-cut components are described as supporting tight tolerances. At 125 pounds, it is a substantial assembly, so plan handling and boom installation accordingly.

Skip it if you need a lighter 24-inch kit; the Titan Attachments DIY 24-inch thumb weighs 64 pounds according to its listing.

Choose this Titan for a broad 32-inch clamping span, adjustable teeth, and removable construction on demanding backhoe work. Its 125-pound weight and weld-on installation make handling plans and bucket measurements important before fitting.

Listed on Amazon as: 32" Extreme Weld On Backhoe Thumb Hoe Clamp 5/8" Steel Plate Assembly Adjustable

#3 · Hydraulic Adjustment

3. VEVOR 18-inch Hydraulic Thumb

• Weight: 63.3 lb
• Material: Alloy Steel

Best for: Hydraulic angle adjustment.

Why it ranks #3: This weld-on 18-inch model includes a hydraulic cylinder and three mounting-hole positions for angle adjustment, plus a 1/2-inch-thick tooth plate.

A hydraulic cylinder works with a hydraulic pump to adjust this VEVOR thumb’s length, giving operators powered positioning rather than relying only on a fixed setting. Three mounting holes offer additional angle choices, while the 18-inch tooth plate and 19-inch weld plate define the attachment’s working size and mounting interface.

The cylinder’s pump-powered length adjustment can streamline repositioning during material handling, and three mounting holes allow angle selection for different working positions. The 18-by-6-inch tooth plate has a stated 1/2-inch thickness, providing a substantial gripping plate within a compact span. A 19-inch weld plate is the mounting interface, so bucket dimensions affect installation planning. At 63.3 pounds and made of alloy steel, the listed weight and material help buyers assess handling and fabrication needs.

Skip it if you do not have a hydraulic pump for adjustment; the Titan Attachments 24-inch DIY kit is a weld-on alternative without a listed cylinder.

A fit for operators who want hydraulic length adjustment and selectable mounting angles on an 18-inch thumb. The pump is required for cylinder operation, and the 19-inch weld plate must suit the bucket and boom installation.

Listed on Amazon as: Vevor 18" Hydraulic Backhoe Thumb, 1/2" Thickness Heavy Duty Excavator Thumb, Black Steel Weld On Thumb Attachments with Hydraulic Cylinder, Mechanical Hydraulic Thumb for Backhoe/Excavator

#4 · DIY Weld-On Kit

4. Titan Attachments 24-inch DIY Kit

• Weight: 64 lb

Best for: DIY weld-on assembly kit.

Why it ranks #4: Its 24-inch DIY kit uses plasma-cut components and 1/2-inch steel plate, making it a purpose-built choice for buyers assembling the thumb themselves.

Precision plasma-cut components that align, tack, and weld make this Titan Attachments 24-inch DIY kit a hands-on option for fabricators assembling a backhoe thumb. Its 1/2-inch steel plate is specified for demanding digging, lifting, and material handling, extending the machine’s ability to grip logs, rocks, brush, stumps, and debris.

The kit’s plasma-cut components fit together for an assembly sequence of alignment, tacking, and welding, giving a capable fabricator a defined installation workflow. Heavy-duty 1/2-inch steel plate supports the listed digging, lifting, and material-handling applications. At 24 inches, the thumb provides a stated size for comparing against the bucket and work needs. The product is presented as a DIY weld-on kit, so the buyer completes the assembly and boom attachment rather than receiving a ready-mounted unit.

Skip it if you want a ready-to-install hydraulic thumb; the VEVOR 18-inch model includes a hydraulic cylinder for powered length adjustment.

This kit suits a fabricator who wants to assemble a 24-inch thumb for gripping logs, rocks, brush, or debris. Choose it only if you can complete the alignment and welding work and verify the size against your machine.

Listed on Amazon as: Titan Attachments 24" DIY Weld-On Backhoe Thumb Kit, 1/2" Steel

#5 · Folding Design

5. Titan Attachments 24-inch Folding Thumb

• Weight: 54 lb

Best for: Folding 24-inch clamp.

Why it ranks #5: The 24-inch model has 1/2-inch tine plates, adjustable removable teeth bars, and a folding design described in its product title.

A folding 24-inch tine assembly gives this Titan Attachments weld-on thumb a way to move out of the working area when it is not needed. Adjustable, easily removable teeth bars add setup flexibility, while 1/2-inch tine plates and 3/8-inch body plates specify the steel thicknesses used in the assembly.

The 24-inch tine length defines the thumb’s reach, while adjustable teeth bars let operators change the gripping setup for different handling tasks. Folding construction helps clear the attachment from the work area when the thumb is not in use, and the removable bars provide another adjustment option. Plasma-cut parts are described as offering tight tolerances. Installation is a weld-on process, so the bucket and boom arrangement needs to be measured and the assembly fitted by someone prepared to weld.

Skip it if you need a 32-inch gripping span; the Titan Attachments Extreme 32-inch thumb offers a longer teeth bar.

This suits operators wanting a 24-inch weld-on clamp that folds away and has adjustable, removable teeth bars. Its stated tine length and weld-on mounting make bucket measurement and installation planning key considerations.

Listed on Amazon as: 24" Backhoe Thumb Hoe Clamp 1/2" Steel Plate Assembly Weld On Adjustable Folding

#6

6. Mophorn 32-inch Thumb

• Weight: 73.5 lb

Best for: Long-span 32-inch thumb.

Why it ranks #6: Its 32-inch tooth plate is 1/2 inch thick and 6 inches wide, with a 19-inch weld plate; buyers must verify the bucket match.

A 32-inch tooth plate gives this Mophorn weld-on thumb a longer gripping span for picking up larger items such as stones. The plate is 6 inches wide and 1/2 inch thick, while a 19-inch weld plate supplies the mounting surface for a compatible backhoe bucket and boom.

The 32-by-6-inch tooth plate creates a longer contact area than a compact thumb, which can help when gripping the heavy objects identified in the listing, including stones. Its 1/2-inch steel thickness specifies the plate’s substantial construction. A 19-inch weld plate makes bucket measurement central to installation planning. The triangular structure is described as adding stability and durability, and the powder-coated finish is intended to resist corrosion. The listed weight is 73.5 pounds, relevant when handling the assembly.

Skip it if you need hydraulic positioning; the VEVOR 18-inch hydraulic thumb includes a cylinder for pump-powered length adjustment.

Consider this Mophorn for backhoe operators who need a long 32-inch gripping plate for stones and other heavy objects. The 19-inch weld plate and 73.5-pound assembly make bucket fit and installation handling important.

Listed on Amazon as: 32 inch Backhoe Excavator Thumb Attachments Weld On Adjustable Boom Tractor Excavator 1/2Inch Teeth Thick Steel Plate Assembly 12MM Bolt-On Design

#7

7. Mophorn 18-inch Thumb

• Material: Alloy Steel

Best for: Compact 18-inch bucket jobs.

Why it ranks #7: This compact option has an 18-inch, 1/2-inch-thick tooth plate and a 19-inch weld plate, but offers less reach than longer listed models.

An 18-inch tooth plate with a 1/2-inch thickness gives this Mophorn thumb a compact gripping surface for backhoe work involving material pickup and handling. Its 19-inch weld plate provides the mounting interface, while the triangular heavy-duty steel structure adds stability to the assembly during use.

The 18-by-6-inch tooth plate keeps the attachment’s working width defined, and its 1/2-inch thickness supplies substantial steel at the gripping edge. A 19-inch weld plate gives the installer a specific mounting surface, so bucket dimensions matter before fabrication. The triangular structure supports stability, while the powder-coated surface is specified to resist corrosion. Plasma-cut plates are described as fitting tightly, and the M24 fastener specification identifies the supplied thread size for assembly planning.

Skip it if you need hydraulic angle adjustment; the listed Mophorn model uses a weld-on adjustable assembly without a hydraulic cylinder.

A practical pick for operators seeking a compact, weld-on 18-inch thumb with a corrosion-resistant finish and sturdy triangular structure. Check that the 19-inch weld plate and tooth-plate dimensions suit the bucket and boom before installation.

Listed on Amazon as: 18 inch Backhoe Excavator Thumb Attachments Weld On Adjustable Boom Tractor Excavator 1/2Inch Teeth Thick Steel Plate Assembly 12MM Bolt-On Design