Master Controller for 4 Step/6 Cams
Key Attributes:
Note: Corporate volume discounts applied at formal quotation stage.
| Manufacturer Model No | MC-4/6 |
| CMK Internal SKU | CMK-MC46 |
| Brand / Manufacturer | CMK OEM |
| Category | EOT Crane Components |
| Product Line / Subcategory | Master Controller |
| Units | Pcs |
| Max Contacts | 24 maximum |
| Body Material | M.S. sheet |
| Contact Material | Silver Cadmium |
| Protection Class | IP-44 / IP-54; IP-41 shown for MC-5/7 & MC-5/9 |
| Optional Arrangement | Spring return / Deadman's handle |
| Standard Unit of Measure | Pcs |
| Standards & Quality Compliance | IS/IEC 60947 |
| Manufacturer Warranty | 12 Months OEM Warranty |
Engineering & Technical Overview
The Master Controller for 4 Step/6 Cams is a heavy-duty cam-operated master controller manufactured by CMK Electro Power for precise multi-step speed regulation and reversing control of crane slip-ring induction motors and mill drives. Encased in a rugged sheet steel or cast iron housing with deadman handle safety return, this controller houses multiple independent silver-alloy cam contact blocks operated by an ergonomic joystick or lever. Designed for high switching frequency, smooth tactile notches, and long mechanical endurance in severe industrial environments.
Industrial Applications & Machinery
Operator cabin master control for steel mill ladle cranes and heavy EOT cranes.
Reversing speed regulation of slip-ring motor stator and rotor resistance banks.
Gantry crane gantry travel, boom hoists, and port container spreader controls.
Winch drums, foundry charging hoists, and heavy rolling mill auxiliary drives.
Harsh industrial control cabins subject to dust, vibration, and continuous operator duty.
Key Operational & Safety Benefits
Multi-Step Speed Regulation
Up to 6-0-6 notch positions provide fine micro-inching and high-speed acceleration steps.
Heavy Silver Cam Contacts
Arc-resistant silver-alloy contacts withstand high inductive switching without pitting.
Deadman Safety Spring Return
Automatically resets the lever to neutral zero position if operator releases the grip.
Rugged Mechanical Enclosure
Thick-walled industrial enclosure shields contacts from abrasive mill dust and moisture.
Smooth Tactile Detents
Crisp detent notches give operators tactile feedback without taking eyes off the suspended load.
Statutory & International Compliance Certifications
Official CMK Electro Power statutory accreditations, international test compliance, and quality standard certificates.
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