B. Four Engineering & Construction

Bailey Bridges

Bailey bridges are modular, pre-fabricated structures ideal for rapid deployment in rugged terrains and project sites. B Four Engineering & Construction has proudly supplied and installed Bailey bridges for leading infrastructure projects, including Nyadi Group, Radhi Bidyut Company, Paanchthar Power, Beni Hydropower, Dolakha Nirman Company, Nilgiri Khola Hydropower, and more.

Crackamite

Crackamite is a high-performance, non-explosive demolition agent designed for safe and efficient rock breaking, concrete cutting, and controlled demolition without the risks of blasting. B Four Engineering & Construction has successfully supplied Crackamite for numerous hydropower and road projects across Nepal, helping engineers complete challenging excavation works safely, quietly, and cost-effectively.

Pneumatic Rock Drills

Pneumatic Rock Drills are powerful and reliable machines engineered for efficient drilling in tough rock surfaces. Designed for durability and high performance in demanding environments, they are ideal for mining, tunneling, and construction projects. B Four Engineering & Construction has successfully supplied HAVA Rock Drills for numerous hydropower and infrastructure projects across Nepal, delivering dependable solutions that enhance productivity and reduce downtime.

🔄 Spare Parts & Maintenance Support

At B. Four Engineering & Construction Pvt. Ltd., we understand the importance of uptime. That’s why we provide genuine and compatible spare parts for a wide range of equipment, ensuring your operations run smoothly with minimal downtime. We stock and supply spare parts for:

🛠 Rock Drills (HAVA, YT-29A series)
🔧 Air Compressors (including piston and diesel types)
🏗 PZ3 & PZ5 Shotcrete Machines
💥 Pavement Breakers (High-Range & Low-Range)
🧵 Hose Pipes, Clamps, and Couplings
🔩 Airline Lubricators, Exploders, and Ohm Meters

We also provide servicing and support for equipment maintenance and replacements.

Crackamite

Non-explosive demolition agent, Perfect for rock breaking without vibration.

Compressors

Portable 3-piece design. Ideal for running a single jackhammer in remote locations.

Button Bits

Sizes: 32mm, 36mm, 38mm, 40mm, 42mm

Taper Rods

Lengths: 2ft, 3ft, 5ft, 6ft, 8ft, 10ft, 12ft, 15ft

Rock Drill Machines

High-performance drill for wet & dry operations.

Pavement Breaker

Powerful tool for breaking concrete & asphalt.

Pusher Leg

Provides thrust and support for rock drilling in tunneling and mining.

Airline Lubricator

Essential for protecting pneumatic tools from wear.

Exploder

Safely initiates controlled blasts with reliable manual operation.

Ohm Meter

Checks circuit continuity to prevent misfires.

Hose Pipe

High-pressure, flexible & durable.

Safety Items

Maximum protection for your crew.

🧱 Why Choose B. Four Engineering?

At B. Four Engineering & Construction, we believe that the foundation of any great infrastructure project is reliable equipment and dependable support. With years of experience in Nepal’s most demanding terrains—from the rugged hillsides of hydropower sites to remote road and tunnel projects—we’ve built a reputation for durable products, quick response times, and long-term client trust. We work closely with project teams to understand on-site challenges and provide tailored solutions that perform in real-world conditions. Our focus is not just on supplying equipment, but on building partnerships that last through every phase of construction.

Here’s why top contractors and engineers choose us:

🔨 Trusted Name in Infrastructure Projects
🪓 Rugged Equipment Built for Nepali Terrain
🚜 Portable Solutions for Remote Sites
🔧 End-to-End Support — From Consultation to Spare Parts
📦 Local Stock for Fast Delivery
💰 Competitive Pricing & Bulk Order Discounts
🤝 Backed by Repeat Clients & High Satisfaction Rates

B. Four Engineering & Construction Pvt. Ltd.

Bailey Bridges

Crackamite

Pneumatic Rock Drills

🔄 Spare Parts & Maintenance Support