NM Attachments - Class 8 Hydraulic Stick-Pivot Thumb - 2 Tines - Cushion Cylinder, Serrated Curved AR400 Tines [NM-8HSP-2T]

The NM Attachments Class 8 Hydraulic Stick-Pivot Thumb - 2 Tines - Cushion Cylinder, Serrated Curved AR400 Tines is a hydraulic excavator thumb designed for material handling with excavators in the approximately 14,000–24,000 lb (about 7–12 ton) class. Model 8HSP-2T uses a stick-pivot mounting arrangement that pivots from the excavator’s main bucket pin, allowing the thumb to work with the bucket for handling and securing material. Its two serrated, curved AR400 steel tines provide a durable contact surface, while the heavy-duty hydraulic cylinder incorporates a cushion feature in the base end to reduce shock during operation.

Product Overview

Built from high-grade structural steel, the NM-Attachments 8HSP-2T is intended for excavator applications that require hydraulic thumb functionality in a two-tine configuration. The stick-pivot design connects at the main bucket pin, providing the mounting arrangement specified for this model. Hydraulic operation allows the thumb to be positioned using the excavator’s auxiliary hydraulic circuit, supporting controlled engagement with materials during handling tasks.

The tine ends are serrated and curved to help engage material during use. Tines are manufactured from AR400 steel, a material specified for the product’s tine construction. The heavy-duty cylinder features a cushioned base end designed to reduce shock, contributing to smoother hydraulic thumb operation.

Key Features

• Hydraulic stick-pivot excavator thumb
• Two-tine configuration
• Pivots from the excavator’s main bucket pin
• AR400 steel tines
• Serrated, curved tine ends for material handling
• High-grade structural-steel construction
• Heavy-duty hydraulic cylinder
• Cushion feature in the cylinder base end to reduce shock
• Designed for the NM Attachments 8HSP-2T size class

Material Handling Design

The two-tine arrangement provides a focused contact configuration for hydraulic thumb work. Serrated, curved tine ends are specified to support material handling, while the AR400 steel construction provides the designated tine material for this model. The thumb’s hydraulic stick-pivot layout is designed around the excavator’s main bucket pin, making the mounting and pivot location an integral part of its operating design.

Hydraulic Operation

This thumb requires a hydraulic auxiliary circuit for operation. The heavy-duty hydraulic cylinder includes a cushion feature in the base end to reduce shock. Exact manufacturer hydraulic flow and pressure requirements were not verified, so the excavator’s auxiliary circuit should be checked for suitability before installation or use.

Compatibility

The NM Attachments 8HSP-2T corresponds to excavators weighing approximately 14,000–24,000 lb, or approximately 7–12 tons. Compatibility is based on the excavator weight class and the hydraulic stick-pivot design. The excavator must also have a suitable hydraulic auxiliary circuit.

Tractor and Excavator Requirements

This product is an excavator thumb and is specified for use with excavators in the 14,000–24,000 lb class. A hydraulic auxiliary circuit is required. Confirm the excavator’s attachment interface, main bucket pin arrangement, and hydraulic system suitability before fitting the thumb. Manufacturer flow and pressure specifications were not verified.

Specifications