Grape Enterprises, established in 2017, is a specialist in tubesheet drilling with precision CNC machines. Our facility hums with activity as skilled technicians operate advanced machinery to deliver exceptional quality tube sheet drilling solutions for industrial heat exchangers and pressure vessels.
Our partners, oversee operations as our team performs operations and quality checks on jobs with micrometer precision.
Grape Enterprises
Grape Enterprises (formerly A-one Engineering), established in 2017, is a leading Indian specialist in tubesheet drilling using precision CNC deep hole drilling machines. We deliver precision solutions through four market-focused business segments. Our expert team combines innovation with a passion for excellence to add value to our clients' businesses.
Our capabilities include CNC Deep Hole Drilling, CNC Horizontal Drilling, VTL, and Radial Drilling Machines - all operated with precision.
- Highly Professional Staff
- 100% Satisfaction Guarantee
- Quality Control System
Why You Should Hire Us
Grape Enterprises, established in 2017, specializes in precision tubesheet drilling using advanced CNC deep hole drilling machines. With our extensive experience in industrial heat exchanger and pressure vessel manufacturing, we deliver exceptional quality solutions that meet the highest industry standards.
Precision Expertise
We deliver exceptional quality tubesheet drilling solutions for industrial heat exchangers and pressure vessels with precision within tight tolerances.
Technical Excellence
Our state-of-the-art machinery including CNC Deep Hole Drilling machines capable of handling tube sheets up to 3 meters in diameter ensure precision drilling for all project requirements.
Client Commitment
We maintain transparent communication throughout the project lifecycle, keeping clients informed on work progress and quality checks at every stage.
Manufacturing Capacity
Our 1000 sq. meter workshop with 20T overhead crane and multiple specialized machines ensures we can handle projects of any scale with reliable backup support.
Shop Floor Capacity
Grape Enterprises' 1000 sq. meter workshop in Navi Mumbai is specifically designed for precision tubesheet drilling operations. Our facility features a reinforced RCC floor with a 20T overhead crane, enabling us to handle large-scale industrial projects with ease.
- 20T Overhead Crane capacity for handling heavy components up to 15 meters in length
- Three optimized spans (2.5m, 2.5m, 10m) with heavy-duty chains for efficient material handling
- Complete suite of specialized machinery including CNC Deep Hole Drilling machines capable of handling tube sheets up to 3 meters in diameter
Comprehensive Material Capabilities
Grape Enterprises specializes in precision tubesheet drilling across diverse material grades including exotic alloys, stainless steel, low alloy steel, and carbon steel.
Our CNC Deep Hole Drilling machines and experienced team ensure exceptional quality regardless of material complexity or project requirements. Each material type receives customized drilling approaches optimized for precision.
Materials Handled
Exotic / Special Grade Materials
Our expertise extends to challenging exotic and special grade materials commonly used in high-performance industrial applications like aerospace and chemical processing.
| Material | Applications |
|---|---|
| Titanium / Cladded | Chemical processing, aerospace, marine |
| Hastelloy | Corrosive environments, chemical reactors |
| Naval Brass | Marine heat exchangers, condensers |
| Cupro Nickel | Seawater cooling systems, offshore |
| SS 904L | Sulfuric acid, pharmaceutical equipment |
| Inconel 625 | High-temperature, nuclear components |
Stainless Steel Grades
We handle a comprehensive range of stainless steel grades for various industrial requirements, from food processing to desalination plants.
| Grade | Properties | Applications |
|---|---|---|
| Duplex S31803 | High strength | Oil & gas |
| Duplex S32205 | Cl- resistance | Offshore, desalination |
| Austenitic 304/L | General purpose | Food, pharmaceutical |
| Austenitic 316/L | Superior corrosion | Marine, chemical |
| Austenitic 321 | High temperature | Heat exchangers |
| Austenitic 310 | Oxidation resistance | Furnace components |
Low Alloy & Carbon Steel
Specialized and standard steel materials for cost-effective and heavy-duty industrial solutions in power generation and oil sour service.
| Grade/Type | Characteristics | Applications |
|---|---|---|
| SA 266 Gr.2/4 | High strength alloy | Pressure vessels, boilers |
| Boiler Quality | High purity, weldable | Power generation |
| HIC Resistant | Hydrogen resistance | Sour service oil & gas |
| MS (Mild Steel) | General purpose | Structural components |
Why Material Expertise Matters
- Specialized Tooling: Material-specific BTA sizes and drilling parameters
- Optimized Processes: Customized drilling approaches for each material
- Quality Assurance: NABL-certified instruments verify hole accuracy
- Experienced Team: Understanding material-specific challenges
Quality Control
NABL-certified instruments ensure precision across all grades:
- Vernier Calipers: 0-300mm and 20-2000mm ranges
- Micrometers: 0-25mm and 25-50mm ranges
- Inside Dial Gauges: 0-25mm range
- Inside Micrometers: 100-1200mm range
- Plug Gauges (Go & NoGo): Multiple sizes verification
OUR CAPABILITIES BY MATERIAL TYPE
| Capability | Exotic Grades | Stainless Steel | Low Alloy Steel | Carbon Steel |
|---|---|---|---|---|
| Max Diameter | 3 meters | 3 meters | 3 meters | 3 meters |
| Max Thickness | 800 mm | 800 mm | 800 mm | 800 mm |
| Tolerance | ±0.02mm | ±0.02mm | ±0.02mm | ±0.02mm |
| Hole Sizes | Ø16.12-Ø32.08 | Ø16.12-Ø32.08 | Ø16.12-Ø32.08 | Ø16.12-Ø32.08 |
Need Help Choosing the Right Material?
Our expert team provides guidance based on your specific application requirements:
WE WORKED WITH ROYAL CLIENTS
