A line boring machine in India for on-site bore repair — no workshop, no transport, no dismantling. BOS DS50 and DS60 are portable line boring and automatic welding machines available for purchase and delivery to any state in India.
Sales, delivery, and operator training from our offices in Udaipur, Rajasthan and Bangalore, Karnataka — serving mining, construction, marine, and industrial customers across every state in India.
The Indian Context
India operates one of the world's largest fleets of heavy earth moving machinery — over 90,000 excavators, 50,000+ backhoe loaders, and hundreds of thousands of crushers, cranes, and mining shovels working across the country's infrastructure corridors, coalfields, and ports. These machines work in some of the harshest operating conditions in the world: abrasive soils in Rajasthan, high-altitude mine sites in Jharkhand and Odisha, humid port environments in Mumbai, Vizag, and Chennai, and the round-the-clock pressure of National Highway projects across every state.
The result is accelerated bore wear. Pin bores on excavator buckets, boom pins, dipper arm pivots, and crusher frame bores wear oval, oversized, or out-of-tolerance faster than OEM maintenance intervals predict. And when a bore fails, so does the machine — and so does the project timeline.
The traditional solution — dismantling the component, transporting it to a lathe workshop, waiting in the workshop queue, and reassembling — takes 5 to 15 days on average. In India's project-driven economy, where penalty clauses run at Rs. 50,000–5,00,000 per day of delay, that's not a maintenance event. That's a business risk.
BOS portable line boring machines eliminate the transport step entirely. The machine comes to the equipment, sets up in 30–60 minutes, bores or welds in 2–8 hours, and the equipment is back at work the same day. For a fleet operator running 20 excavators across a road project in Uttar Pradesh, or a mining contractor with rope shovels in the Dhanbad coal belt, the economics change fundamentally.
Explore the full numbers in our 2026 Line Boring Cost Guide for India or our on-site service overview.
Category Overview
A line boring machine is a precision machining tool used to restore worn, oversized, or misaligned cylindrical bores — the housings that hold pin joints, bearings, and pivot points in heavy machinery. When these bores wear through repeated loading and movement, the pin or bearing that fits inside them no longer runs true, causing accelerated wear, increased play, and reduced structural integrity. A line boring machine removes material uniformly around the bore's inner circumference to restore the correct diameter, roundness, and surface finish.
The name "line boring" comes from the principle of operation: a single boring bar, supported at both ends, cuts along a single axis — the "line" — through the bore. This ensures the bore is machined true to its original centreline, regardless of how the wear has distributed. A single-point boring tool on the bar removes a thin layer of material per revolution, progressively enlarging and truing the bore until it reaches the specified diameter.
Line boring machines in India are used across every sector where heavy machinery operates: mining excavators, construction equipment, marine vessels, port cranes, industrial plant, and railway maintenance. Whenever a pin joint wears — whether it is an excavator bucket pin on a Tata Hitachi EX210 in a Rajasthan quarry or a rudder pintle on a bulk carrier berthed at Vizag port — a line boring machine is the correct tool to restore it.
For a technical deep-dive, see our complete guide to what line boring is and how it works.
Market Overview
Line boring machines available in India fall into two broad categories: stationary workshop machines and portable field machines. Understanding the difference is essential for choosing the right solution for your equipment fleet and operating context.
Stationary line boring machines are mounted to workshop beds and require the bore component to be brought to the machine — the machine does not go to the equipment. For large components (excavator booms, crusher frames, ship rudder gudgeons), dismantling and transporting the part to a workshop takes 3–7 days and significant freight cost.
Best for: Small components that can be easily transported. Batch repair of multiple bores in a fixed workshop setting. High-precision bores where the workshop environment offers advantages.
Limitation: Not suitable for large, heavy, or fixed equipment — the machine cannot go to the site.
Portable line boring machines are self-contained systems that mount directly to the equipment being repaired — no dismantling, no transport. The machine sets up on the bore in 30–60 minutes, machines the bore in 2–8 hours, and the equipment returns to work the same day. BOS DS50 and DS60 are portable line boring machines in India with additional automatic bore welding capability.
Best for: On-site bore repair of excavators, crushers, cranes, marine vessels, and any equipment where dismantling the bore component would be impractical, expensive, or time-consuming.
Advantage: Zero transport time, same-day repair, 40–60% cost saving vs workshop route.
For most operators of heavy earth moving machinery (HEMM) in India — mining contractors in Jharkhand, construction fleets on highway projects, quarry operators in Rajasthan — a portable line boring machine in India is the correct choice. The equipment is large, the work sites are remote, and the cost of moving equipment to a workshop (both direct freight cost and indirect off-hire time) makes workshop boring uneconomical for all but the smallest bores.
IndiaMART lists numerous line boring machine suppliers in India — both workshop machines and portable alternatives. BOS DS50 and DS60 are the most capable portable line boring machines in India currently available, combining boring, automatic welding, sector welding, and flange facing in a single system. See how they compare in our DS50 vs DS60 comparison guide.
Pricing Guide
Line boring machine prices in India vary significantly based on the type of machine, bore diameter range, and included features. Here is a practical 2026 overview for buyers comparing options in the Indian market.
| Machine Type | Bore Range | Approx. Price (India, 2026) | Best For |
|---|---|---|---|
| BOS DS50 (portable + welding) | 55–160mm | Rs. 3,25,000 ex-GST | Excavators, backhoes, small crushers |
| BOS DS60 (portable + welding) | 65–600mm | Rs. 5,75,000 ex-GST | Large mining equipment, cranes, marine |
| Workshop boring machines (stationary) | Varies by model | Rs. 1,50,000–8,00,000+ | Workshop batch bore repair |
| On-site bore repair service | Any diameter | Rs. 8,000–25,000 per bore | Single-event repairs without machine purchase |
For fleet operators running 5+ machines with regular bore maintenance requirements, purchasing a line boring machine in India delivers ROI within 8–15 repair cycles compared to outsourcing to a workshop. A single excavator bore repair event — transport, workshop queue, machining, return — costs Rs. 40,000–80,000 once all indirect costs are counted. The BOS DS50 at Rs. 3,25,000 pays for itself in fewer than 10 such jobs.
For a complete breakdown with equipment-specific pricing, ROI calculations, and consumable costs, read our Line Boring Cost India 2026 Price Guide.
Choose Your Machine
| Specification | BOS-DS50 | BOS-DS60 |
|---|---|---|
| Bore Diameter Range | 55 – 160 mm | 65 – 600 mm |
| Motor Power | 3,100 W | 3,800 W |
| Torque | 130 N.m | 220 N.m |
| Boring Bar Diameter | Ø 50 mm | Ø 60 mm |
| Spindle Speed | 50 – 255 RPM | 30 – 200 RPM |
| Surface Finish | Ra 3.2 | Ra 3.2 |
| Welding Functions | Auto, Sector, Jump, Spiral | Auto, Sector, Jump, Spiral |
| Typical Equipment | Excavators, Backhoes, Crushers | Large Excavators, Cranes, Shovels |
| Power Supply | 220V / 380V | 220V / 380V |
| Delivery in India | ✓ Available | ✓ Available |
55–160mm · For standard excavators, backhoes, stone crushers. The most popular model for India's construction and earthmoving fleets.
View DS50 →65–600mm · For large mining excavators, rope shovels, cranes, and industrial plant. India's mining belt preferred model.
View DS60 →Our detailed DS50 vs DS60 comparison guide walks through every spec, use-case scenario, and India-specific application to help you choose.
Read Comparison Guide →Sectors We Serve
Rope shovels, draglines, mining excavators, dump trucks, jaw crushers — Jharkhand, Odisha, Chhattisgarh, Rajasthan coal and iron ore belts.
Excavators, backhoe loaders, cranes, motor graders, road rollers — National Highway projects, metro rail, airport construction across all states.
Stern tube bores, rudder pintles, anchor chain bores — Mumbai, Chennai, Vizag, Kochi, Kolkata, Kandla ports and shipyards.
Turbine housings, gearbox bores, wind turbine nacelle frames — thermal, hydro, wind, and solar plant maintenance teams.
Bogie pivot bores, axle housing repairs, maintenance of railway track laying and ballast tamping machines across Indian Railways zones.
Steel mills, cement plants, paper mills, chemical plant machinery — bore repair without shutdown where line-down costs are extreme.
Geographic Coverage
BOS machines are currently operating in over 18 Indian states. Our two offices — Udaipur (Rajasthan) and Bangalore (Karnataka) — handle sales, training, and technical support for the entire country.
Pricing Reference
"On-site line boring in India costs Rs. 8,000–25,000 per bore. A workshop round-trip for the same job costs 5–8× more once dismantling, transport, waiting time, and reassembly are factored in."
Our 2026 India price guide breaks down service costs by equipment type, bore diameter, location, and welding requirement — along with full ROI calculations for fleet operators considering machine purchase.
Read the 2026 Cost Guide →Purchase Process
Contact us by phone, WhatsApp, or the form below. Describe your equipment type, bore diameter range, and the kind of repairs you need — boring only, or boring with welding. Our technical team will confirm which model suits your application and answer any specification questions.
We provide a detailed quotation covering the machine, accessories, consumables starter kit, and training. For fleet operators or institutional buyers, we can arrange a live demonstration at our Udaipur facility or via video call. Demo visits to your site can be arranged for large orders.
On payment confirmation, the machine is prepared and dispatched within 3–5 working days. Freight is arranged to your address across India — delivery typically takes 7–15 working days depending on your location. Our team tracks the shipment and keeps you updated.
On receipt, our technical team provides comprehensive operator training — setup, alignment, boring parameters, welding modes, surface finish, and maintenance. Training is included with every purchase. Post-installation, our Udaipur and Bangalore offices provide continuing technical support, spare parts, and consumables supply.
Common Questions
Prakhar has led line boring operations across mining, construction, and marine sectors in India since 2014. He designed the BOS DS50 and DS60 to solve field problems he encountered firsthand — eliminating the need to transport equipment to workshops for bore repair.
Get in Touch
Tell us your equipment type, bore diameter, and location — we'll respond within one business day with a quotation or to schedule a consultation.