D25-D

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Specifications

Power Source	CAT 32.7 HP (Tier 4)
Horsepower	32.7 HP @ 2800 RPM
Max Spindle Torque	3,764 ft. lbs. (5.103 Nm)
Spindle Bore	2.3775" I.D. (60 mm)
Push & Retract Force	Up : 11,290 lbs. (50.2 kN) Down : 9,250 lbs. (41.2 kN0
Rotary Box	60 Double Chain Drive
Clutch	8.5" Clutch
Transmission	Helical gear transmissions with 3 forward
Drilling Type	All Purpose

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Introducing the newly redesigned Diedrich D-25 D! Designed with a new powertrain and improved control panel, this drill has been engineered to deliver the most production using the smallest possible footprint.

If you’re looking for a drill that is compact, lightweight and has the ability to auger, soil sample and core with restrictive clearance drilling capability, look no further.

With the D-25’s ability to be mounted on tracks, ATV, skid, trailer or truck and all of the options you can use to customize this capable drill, you will find a combination ot perfectly accommodate your needs.

Rated for 3-1/4” (83 mm) I.D. hollow stem auger to 50 ft. (16 m) depth.
Standard Penetration Test 50-100 ft. (16 – 30 m) depth.

Rated to 150 linear feet (45 m) of core drilling using N Series tools.

ADDITIONAL OPTIONS

Mast
Cathead
Hydraulic Hoist
Slide Base

Leveling Jacks
Trailer Assembly
Water Tank
Drill Platform

Rod Rack
Auger Rack
Tool Boxes
Water Pump

Feed Frame Sheave Mount
Skid
Towing Rack
Caster Assembly

Frame & Base

The drill frame is a weldment, constructed of heavy wall rectangular steel tubing, with sufficient strength and rigidity for heavy-duty use.

Power Source

32.7 HP CAT, Liquid cooled, 3 cylinder, Tier 4 Diesel engine with 12 volt electric start.

Maximum Gross Spindle Torque

First Gear – Low Range

3,764 ft.lbs. (5,103Nm)

Spindle Bore

2.25 I.D. (57.15 mm)

Push & Retract Force

UP: 11,290 lbs. (40.2kN)
DOWN: 9,250 lbs. (41.2 kN)

Rotary Box

The rotary box consists of a #60 two-strand roller chain drive totally enclosed and running in SAE 80w-90 gear oil.

Clutch & Transmission

Clutch – 8.5” (216 mm) automotive type. Three speed forward and one reverse.

Right Angle Drive

The right-angle drive is a heavy-duty gearbox, totally enclosed and running in oil.

Hydraulic System

On the D-25 (D) oil is supplied by a heavy-duty gear type pump rated at 18 GPM (68 L/min) at 2800 RPM. Maximum operating pressure is 2300 PSI (15858 kPa)

The hydraulic valves are stock sectional body directional control valves with integral non-adjustable relief valve.

Auger Adapter

A heavy-duty universal joint which mounts to the spindle with a single nut is provided for ease in hook-up and adjusting for misalignment. All components are sized to withstand torque and axial loads encountered under most drilling conditions. The 1-5/8” (41.3 mm) female hex is standard, other sizes available.

Mast

The mast is approximately 15-3/4 ft(4.5m) from the bottom of the slide base. The mast is pivoted on the drill frame, permitting separation of the drill with the mast horizontal. Quick mast disconnect is standard. Sheaves are provided for the cathead rope and the winch cable.

Cathead

The cathead is hydraulically driven from the drill rig hydraulic system. The cathead drum is 6″ (152mm) in diameter.

Line Pull : 1000 lb. (454 kg)
Speed : 415 ft/min (126m/min)

Hydraulic Hoist

The hydraulic hoist utilizes a worm gear drive with a sealed case. Gears and tapered roller bearings run in oil. Housing and drum are designed to prevent fouling of the cable. Hoist is provided with a safety brake to prevent roll back.

Slide Base

A hydraulically operated sliding base provides 16 inches (406mm) of travel to provide clearance for hoisting tools. The sliding base can be mounted on any flat surface of adequate size.

Leveling Jacks

Jacks are available for rear and front mounting. Mechanical dropleg jacks with a 12″ (305mm) drop and 13-1/2″ (343mm) lift capacity are standard. Hydraulic jacks are also available.

Trailer Assembly

Double axle trailers are available in 6000 lb. (2720 kg) and 9000 lb. (4080 kg) capacities for transporting and drilling with the rig. Steel ramps are provided for removing the rig from the trailer.

Water Tank

Welded steel water tanks mount at the front of the drill platform

Drill Platform

Dimensions vary with the truck or carrier size. Welded construction consists of structural steel and deck plates. Running lights are included.

Rod Rack

Above deck rod rack and underbody rod rack are standard with drill platform. Optional rod storage under the water tank is also available.

Auger Rack

Above deck auger rack is standard with drill platform. Underbody fixed or hinged auger racks are available.

Tool Boxes

Tool boxes are available for above or below deck mounting in several sizes.

Water Pump

Pump is frame mounted and driven from the rig hydraulic system.

Moyno 3L4 with variable speed

Feed Frame Sheave Mount

The feed frame sheave mount bolts to the top of the feed frame to allow use of the cathead and winch when drilling with the mast horizontal. This permits drilling in 10 ft (3m) overhead clearances with a skid mounted rig.

Skid

The drill can be mounted on a steel skid with an overall length of 116″(2946mm) and a width of 48″(1219mm). The arm of the skid is removable for ease of drilling.

Towing Rack

The towing rack mounts to the front of the main frame. This allows movement of a skid mounted rig in either direction using the hydraulic winch.

Caster Assembly

Casters clamp to the skid frame for ease of movement on hard surfaces.

Trailer Mounted

Truck Mounted