Sandvik continues to lead the way in mining technology with the launch of its DD322i development drill rig. Designed to excel in tight spaces and complex underground environments, the DD322i sets new standards for efficiency, safety, and operator comfort. This article explores the key features, benefits, and specifications of this advanced drill rig, showcasing why it’s an essential asset for modern mining operations.
Key Features of the Sandvik DD322i
Intelligent Boom Technology
At the heart of the DD322i is its intelligent boom system. The SB55i boom is equipped with two roll-overs and electronic parallelism, ensuring precise and rapid positioning of the drill feed. This innovation translates into higher accuracy and faster drilling operations, significantly boosting productivity.
Low Emissions Diesel Engine
The DD322i is equipped with a low-emissions diesel engine, compliant with the strictest environmental standards, including Tier 4F and Stage V certifications. This not only improves underground working conditions by reducing harmful emissions but also aligns with global sustainability goals.
Ergonomic Operator Cabin
Operator comfort and safety are paramount in the design of the DD322i. The rig features a modern, ergonomic cabin with significantly reduced noise levels and 55% more visibility, thanks to larger windows and glass doors. This enhanced visibility ensures that operators can work more efficiently and safely.
Hydrostatic Transmission
The DD322i’s hydrostatic transmission system, powered by a robust diesel engine, offers superior tramming capabilities. This feature is crucial for navigating small headings, tight corners, and intersections, making it ideal for complex underground layouts.

Specifications at a Glance
- Coverage: 58 m²
- Hole Length: 3.44 – 5.27 m
- Hole Diameter: 43 – 64 mm
- Tramming Type: Hydrostatic transmission
- Engine: TCD3.6 (100 kW, Tier 3, Stage IIIA)
- Number of Booms: 2 x SB55i
- Feed Length: Fixed TF5i 12 to 18 ft or telescopic TFX 6-12ft. to 8-14 ft.
- Rock Drill: RD520 20kW
- Voltage: 380 – 690 V (multi voltage)
- Weight: 21,500 kg (depending on options)
Safety and Productivity Enhancements
Boom Control While Tramming (BCWT)
One of the standout features of the DD322i is the Boom Control While Tramming (BCWT) option. This allows operators to control two booms simultaneously while the rig is moving, significantly improving productivity and operational efficiency.

Collision Avoidance and Teleremote Drilling
The DD322i is equipped with a boom collision avoidance system and teleremote drilling capabilities. These features not only enhance safety by preventing collisions but also allow for remote operation, reducing the need for personnel to be in potentially hazardous areas.
The Sandvik DD322i development drill rig is a game-changer in the field of underground mining. With its intelligent boom technology, low emissions engine, ergonomic design, and advanced safety features, it offers unparalleled efficiency and safety. Mining operators looking to enhance their productivity and environmental compliance will find the DD322i an invaluable addition to their fleet.