Mitsui SLB-300SG Road Header — Rebuilt 2020, 116t Hard Rock Tunnelling, Radio Remote

Overview

Mitsui SLB-300SG road header, rebuilt to as-new condition in 2020 by (CMS). Purpose-built for continuous excavation of soft to hard rock in tunnelling and hard rock underground development. In-line pineapple-style cutter head, 116 tonne body for stable heavy-rock cutting, and full 8.8 m × 8.3 m cutting envelope without repositioning. Configured non-flameproof for civil tunnelling and hard rock mining (not suited to gassy coal environments). Fitted with a modern Bosch Rexroth Bodas control platform, Hetronic Nova XL radio remote (AS4240 compliant), pressurised operator cabin with dust catcher, and dual HMI screens. Supplied without on-board cable reel — trailing cable arrangement. Offered directly by CMS.

Specifications

• Manufacturer: Mitsui Miike Machinery Co., Ltd. (Japan)
• Model: SLB-300SG
• Type: In-line road header (continuous excavator / loader / transporter)
• Application: Non-flameproof — civil tunnelling and hard rock underground development
• Rebuild: To as-new condition in 2020 by Civil Mine Services (CMS)
• Plant reference: 3L17

Dimensions & mass

• Overall length: 22.1 m
• Overall width: 4.5 m (crawler section 3.2 m)
• Overall height: 5.3 m
• Total weight: approx. 116 tonnes

Cutting range

• Max cutting height: 8.8 m
• Max cutting width: 8.3 m
• Undercut depth: 0.45 m
• Cutting section: approx. 75 m² (without repositioning)
• Drum telescoping stroke: 0.85 m

Cutting unit

• Type: In-line pineapple-style cutter head with truncated-cone drum
• Cutter motor: 300/200 kW, 6-pole electric dual speed
• Drum speed: 35 rpm @ 50 Hz
• Pick speed: 1.88 m/s @ 50 Hz
• Number of picks: 30 (tungsten carbide)
• Dust suppression: External water spraying system (pick face flushing)

Gathering unit

• Type: Twin spinners with interchangeable blades
• Spinner diameter: 1.95 m
• Spinner speed: variable to max 29 rpm
• Tangential force: 16 kN per spinner
• Gathering width: 4.5 m
• Hydraulic drive: Parker F12-110, 45 kW × 2

Conveyor system

• 1st (machine) conveyor: Centre chain with scraper bar, 750 × 500 mm trough, 70 kW hydraulic drive, variable speed to 61 m/min
• 2nd (rear) conveyor: Endless belt, 900 mm wide, ~9.3 m long, 5.5 kW Toshiba electric drive, up to 91 m/min
• Active load-sensing on both conveyor and spinners — automatic speed modulation based on material load

Tram unit

• Crawler and rollers: CAT
• Shoe width: 800 mm
• Link pitch: 228.6 mm
• Ground pressure: 0.16 MPa
• Speed: 7.6 m/min (low) / 15.3 m/min (high)
• Gradient: ±15°
• Drive: Eaton MK600 with integrated mechanical brake, 57 kW × 2
• Fail-safe braking: hydrostatic during operation, spring-applied on hydraulic loss

Hydraulic system

• Pump motor: 220 kW electric
  
• Double pumps: Rexroth GXP10-125-52 and GXP10-90-90
• Oil tank capacity: approx. 800 L
• Heat exchangers: 2 × fan-cooled, 15,000 kcal/hr each
• Load-locking valves on all raise / lower cylinders (apron, cutting boom, stabilisers, 2nd conveyor)

Water jet system

• Water pump: Hawk HC980A triple plunger, 10 kW
• Max pressure: 10 MPa
• Flow: 40 L/min @ 1450 rpm

Control & operator interface

• Control platform: Bosch Rexroth Bodas
• Radio remote: Hetronic Nova XL, AS4240 compliant, UHF 434.125–434.700 MHz
• Battery life: 12 hours continuous operation per charge (~5 hour recharge)
• Two HMI screens: master on electrical cabinet, slave in operator cabin
• Comprehensive self-diagnostics; spool position monitoring on every hydraulic valve; fail-to-safety on any fault

Operator cabin

• FOP structural enclosed
• Pressurised (Respa CF unit) with SIGMA air conditioning
• Integrated EX II-400H dust catcher
• Interior HMI, guidance screen, and camera monitor
• Door interlocks prevent machine movement with cabin open

Safety architecture

• 6× Emergency Stop devices around the machine + 2× pullwires along rear conveyor
• Radio remote Machine Stop; 10-minute inactivity auto-shutdown
• Spool Position Monitoring (SPM) on all hydraulic valves
• Two-handed motor start commands; single-handed stops
• Load-locking valves on all raise/lower cylinders
• Audible and strobe pre-start alarms on motor and conveyor starts, and continuously during tramming
• Password-protected mode changes and fault resets

Electrical

• Supply voltage: 1000 V 50 Hz (non-flameproof)
• Control circuits: 110 VAC / 24 VDC
• Solenoid circuits: 24 VDC
• Cable reel: Not fitted (trailing cable arrangement required)

Key Features

• Rebuilt to as-new condition in 2020 by CMS — significantly reduced risk vs a straight second-hand purchase
• Modern Bosch Rexroth Bodas control + Hetronic radio remote — compliant with current AS4240 for remote-controlled machinery
• Purpose-built for hard rock — 250 kW cutter, 116 tonne body, in-line pineapple cutter head
• Cuts a 75 m² face (8.8 m H × 8.3 m W) without repositioning the machine
• Continuous excavate / load / transport cycle — single machine handles the full mucking sequence
• Load-sensing hydraulics on spinners and conveyor — automatic speed modulation reduces wear and noise on empty running
• Comprehensive safety architecture built to current Australian standards
• Pressurised cabin with EX II-400H dust catcher and full task lighting
• Full documentation available: OEM manual set, CMS operational manual, electrical schematics

Condition

Rebuilt to as-new condition in 2020 by Civil Mine Services (CMS). Workshop maintained since rebuild. Full condition report, service history, OEM manual set, CMS-authored operational manual, and electrical schematics available to qualified buyers on enquiry. Inspection by appointment, arranged through CMS Corequip.

Location & Delivery

Located in Australia. Delivery / transport can be arranged and quoted separately to buyer's site. Sold as-is, where-is. Freight and rigging at buyer's cost. Note: total mass ~116 tonnes and overall length 22.1 m — heavy-haulage arrangements required.

How to Enquire

Use the Enquire Now button above to register your interest. Include your company, ABN, intended application, project timing, and budget. We'll respond with the condition report, inspection options, and pricing.

About CMS Corequip

CMS Corequip is the equipment and consumables arm of CMS Asia Pacific Pty Ltd, with over 20 years in Australian underground mining, tunnelling and electrical. This machine was rebuilt by CMS in 2020 and is offered directly by CMS. GST invoicing, ABN quoted.

Listing reference: MCH-RHD-0003-U