Overview

This document provides detailed technical specifications and component information for two models of drilling head units: SD5-85 (hydraulic) and SD5A-80 (pneumatic). Both models are compatible with optional American-made stabilizers branded as "White Horse".

1. Specifications

• Drilling Capacity: Both models can drill up to 13mm diameter in S45C steel.
• Max Stroke: SD5-85 has 85mm stroke; SD5A-80 has 80mm stroke.
• Max RPM: Both models operate up to 5000 RPM.
• Propel Pressure: SD5-85 (Hydraulic): 20-25 kg/cm²; SD5A-80 (Pneumatic): 4-8 kg/cm².
• Cylinder Area: Forward (F): 21.5 cm²; Backward (B): 11.5 cm².
• Power: 1 HP, 3-phase, 220V/380V.
• Transmission Belt: 5M-615 type.
• Bearings: Spindle bearing: 6004ZZ×4; Pulley bearing: 6203ZZ×3.

2. Seals and O-Rings

• Front Cover Seal: DKB 50-62-10×1
• Piston O-rings: AP-53×3 or UHA-53×2 depending on model
• Front Cover O-rings: Various types including AG-58, AP-50, AG-68
• Back Cover Seal: TC35-45-8×1
• Back Cover O-rings: AG-58×2, UH-35-45-6×1 or UHA-35-45-6×1

3. Drilling Head Unit Details

Both models feature a 1HP 4-pole motor with ER20 or JT6 spindle interfaces. The units are available in left (FL/BL) and right (FR/BR) orientations for hydraulic and pneumatic versions respectively. Weight for each unit is approximately 39 kg.

4. Dimensional and Mechanical Data

Precise dimensions are provided for spindle diameter (φ50mm), mounting threads (M20×1), and other critical measurements with tolerances as tight as ±0.01mm. Roundness tolerance is ≤0.003mm, ensuring high precision.

5. Additional Notes

• Optional stabilizers from the American "White Horse" brand can be selected for enhanced performance.
• Hydraulic models are designated SD5-85, pneumatic models SD5A-80.
• Both models support ER20 and JT6 spindle types, allowing compatibility with various tooling.

Summary

The document comprehensively details the mechanical, hydraulic, and pneumatic specifications of two drilling head units designed for precision drilling up to 13mm diameter. It includes critical parameters such as stroke length, pressure requirements, power, bearing types, sealing components, and dimensional tolerances. The availability of American-made stabilizers as optional accessories is highlighted, along with multiple spindle interface options and mounting orientations. The units are engineered for high precision and reliability in industrial drilling applications.