Tube expanding machine

Overview
Electrically operated hydraulic power pack engineered for precision tube expansion in boiler construction. Designed for reliable control of expansion cycles and to drive multiple hydraulic motors for varied tube sizes.

Hydraulic Power Pack for Tube Expansion
The HP-5 power pack supplies controlled high-torque hydraulic power to hydraulic drives used in tube rolling and expansion operations. Its microprocessor-controlled pump ensures automated, repeatable cycles and consistent pressure for uniform tube expansion.

Key Features

• Enhanced Safety & Communication: Direct communication between power pack and drive eliminates the need for an electrical cord, improving operational safety and reliability.
• Ultra-Quiet Operation: Hydraulic power reduces noise versus electric or pneumatic systems, suitable for noise-sensitive sites.
• Compact & User-Friendly: Space-saving, lightweight design for easy handling inside boiler drums and confined areas.
• Universal Compatibility: Single power pack compatible with HD-4, HD-5 and HD-6 hydraulic drives to cover a wide tube range.
• High Efficiency & Automation: Microprocessor control automates expansion cycles, removing repeated manual Stop/Start actions and ensuring repeatable results.

Hydraulic Drives for Tube Expansion
High-performance hydraulic drives provide precise, repeatable expansion cycles with high torque and thermal resistance, enabling reliable expansion of large-diameter and thick-wall tubes when paired with the HP-5 power pack.

Specifications - Hydraulic Powerpack
Hydraulic Pump Model | HP-5
Oil Tank Capacity (Litres) | 45
Hydraulic Oil | SAE VG 68
Maximum Working Pressure (bar) | 100
Net Weight (kgs) | 100
Overall Dimensions (mm) | 820 x 320 x 985
Electric Motor | 5 hp, 3 phase
Voltage | 415 V
Standard Hose Size (Length) | 1/2” (10 mtrs.)

Specifications - Hydraulic Drive
Tube O.D (Steel) mm (inch) | Drive Model | Square Socket (inch) | No Load Speed with THP-3/5/10 | Weight (kgs)
19 - 38 (3/4 - 1.1/2) | HD-4 | 3/8 & 1/2 | 350/480/400 | 9.7
38 - 76 (1.1/2 - 3) | HD-5 | 1/2 & 3/4 | 62/84/70 | 11
50 - 102 (2 - 4) | HD-6 | 3/4 & 1 | 40/62/54 | 11.5

Product Features (additional)

• Constant Speed Control: Drives maintain consistent speed through the expansion cycle for uniform tube rolling.
• Uninterrupted Long Working Hours: Drives are heat-resistant and suitable for continuous operation without performance loss.
• Automatic Expansion Control: Microprocessor-controlled system offers adjustable trip, pause and reverse times for precise automated expansion.
• No Repeated Manual Operations: Automated cycle control eliminates repeated Stop/Start operator actions.
• Extreme Torque for Heavy-Duty Applications: Enables expansion of large-diameter, thick-wall tubes in thick tube sheets.

Technical specifications

• Hydraulic Pump Model: HP-5
• Oil Tank Capacity: 45 litres
• Hydraulic Oil: SAE VG 68
• Maximum Working Pressure: 100 bar
• Net Weight (Powerpack): 100 kgs
• Overall Dimensions (Powerpack): 820 x 320 x 985 mm
• Electric Motor (Powerpack): 5 hp, 3 phase
• Voltage (Powerpack): 415 V
• Standard Hose Size: 1/2” (10 mtrs.)
• Drive Models and Tube Range: HD-4 for 19–38 mm (3/4–1.1/2), HD-5 for 38–76 mm (1.1/2–3), HD-6 for 50–102 mm (2–4)
• Drive Square Socket Sizes: HD-4 = 3/8 & 1/2 inch; HD-5 = 1/2 & 3/4 inch; HD-6 = 3/4 & 1 inch
• No Load Speeds (with THP-3/5/10): HD-4 = 350/480/400; HD-5 = 62/84/70; HD-6 = 40/62/54
• Drive Weights: HD-4 = 9.7 kg; HD-5 = 11 kg; HD-6 = 11.5 kg