K404-SYS Wireless Crane & Hoist Control System

The K404-SYS Wireless Control System is a heavy-duty 2-motion, 2-step radio remote control solution designed for dual-function equipment, monorail hoist and trolley systems, overhead cranes, and industrial material handling applications. Built for customers who need dependable wireless control with improved precision, the K404-SYS allows operators to manage two equipment motions with two-step control, making it ideal for lifting and travel functions where smooth, controlled operation matters.

Using 433MHz multi-frequency technology with automatic frequency selection, the K404-SYS helps reduce signal interference and supports reliable communication in busy industrial environments. Its bi-directional communication allows the transmitter and receiver to exchange system information, giving operators greater confidence during daily lifting operations.

The system is built for demanding jobsite conditions with a durable PA6 glass-filled housing and protective shock bumpers that help resist impact and wear. An IP65 protection rating helps guard against dust, moisture, and harsh operating environments, making this wireless hoist control system suitable for manufacturing facilities, warehouses, fabrication shops, and maintenance operations.

Installation is simplified with auto power sensing from 24–240 VAC and 24–160 VDC, allowing the receiver to adapt to a wide range of crane, hoist, and trolley equipment. For added safety, the K404-SYS includes double safety stop MLC relays and interactive system status LEDs that provide clear visual feedback for operation and troubleshooting.

Each complete K404-SYS package includes one receiving unit, two transmitters with legend sets, batteries, mounting hardware, and installation instructions, giving you a complete wireless control solution ready for installation.

For businesses upgrading from pendant controls or replacing an existing crane radio remote, the K404-SYS delivers reliable wireless performance, durable construction, and precise two-motion, two-step control for safer and more efficient material handling.

Specifications

System Type

• SKU: K404-SYS
• Control Style: 2 Motion, 2 Step
• Application: Dual-function equipment, monorail hoist and trolley systems, crane and material handling control
• Frequency: 433MHz multi-frequency with auto selection
• Communication: Bi-directional
• Safety: Double safety stop MLC relays
• Status Display: Interactive system status LEDs

Transmitter

• Frequency: 433MHz
• Typical Operating Range: 300 ft. / 100 m
• Power Supply: 2 × 1.5V AA batteries
• Housing Material: PA6, 30% glass filled
• Protection Rating: IP65
• Operating Temperature: -40°F to +149°F
• Dimensions: 193mm × 57mm × 51mm

Receiving Unit

• Power Supply: 24–240 VAC / 24–160 VDC auto-sensing
• Housing Material: PA6, 30% glass filled
• Protection Rating: IP65
• Mounting: Single bolt
• Dimensions: 190mm × 184mm × 64mm

Includes

• 1 receiving unit
• 2 transmitters
• Legend sets
• Batteries
• Mounting hardware
• Installation instructions