Sunnen MBB-1800D/E Precision Horizontal Hone

Serial Number: 73671 | Year of Mfg: 1985 | Type: Automatic Power Stroker

Overview

This Sunnen MBB-1800D/E is a 1985-vintage industrial workhorse, meticulously engineered for high-precision bore sizing and finishing. Capable of holding tolerances within .0001", it is the industry standard for honing connecting rods, bushings, and small cylinders.

The Automatic Stroker configuration is the most desirable version of this machine. It provides the operator with the flexibility of manual honing for quick one-off jobs, or the power-stroke mode for consistent production without the fatigue of manual stroking.

Technical Specifications

• Year of Manufacture: 1985
• Diameter Range: .125" to 3.750" (Manual up to 6.5")
• Stroke Length: 1/4" to 6" (Adjustable)
• Spindle Speeds: (12) Speeds from 200 to 2500 RPM
• Stroking Rates: 80, 110, 160, 220, 310 SPM (Strokes Per Minute)
• Main Motor: 1 HP Precision Spindle Motor
• Power Stroker Motor: 1/2 HP
• Electrical: 230/460V | 3-Phase | 60Hz
• Oil Capacity: 25 Gallon Internal Reservoir
• Approx. Weight: 1,200 lbs

Key Features

• Universal Tooling Compatibility: This machine accepts the full range of standard Sunnen K, L, and P mandrels, making it easy to find tooling for almost any application.
• Automatic Stroking System: The "E" series power stroker ensures a uniform cross-hatch pattern and eliminates the "taper" often caused by uneven manual stroking.
• Sensitive Pressure Control: Features Sunnen's legendary feed pressure adjustment, allowing for delicate material removal on fragile parts or high-speed roughing on hardened steel.
• Fast-Acting Spindle Brake: A mechanical foot-pedal brake stops the spindle instantly, maximizing both operator safety and part-to-part cycle times.