Brush Chippers BC700S

Vermeer BC700S (VTM BC700S) Towable Disc Brush Chipper Technical Specifications
Architectural Layout & Operational Design Strategy
The Vermeer BC700S is a compact, high-performance towable disc-style brush chipper designed for structural efficiency in commercial arboriculture, site clearance, and rental applications. Mounted on a heavy-duty single torsion axle chassis, it features an expanded track width that delivers high side-to-side towing stability across highways and rugged jobsites. The chipper is built with a wide-profile infeed table and an open hopper layout feeding into a 6-inch by 8-inch throat capacity, significantly reducing the labor required for pre-trimming wide, multi-branched materials. Power is transmitted from the engine via a mechanical centrifugal clutch configuration, utilizing centrifugal force to automatically smooth out belt engagement, preventing belt slippage and drastically reducing maintenance requirements. Operational efficiency is governed by the exclusive SmartFeed system, an automated feed-sensing control loop that monitors engine RPM and dynamically stops or reverses the feed roller under heavy load to prevent engine stalling. Safety compliance is anchored by a redundant three-tier protection layout, featuring a 4-position control bar, an electronic lower mechanical stop bar, and dual green hold-to-run verification switches.
General Dimensions, Weights & Transport Logistics
Overall Length - Transport Profile (Feed Table Up, Tongue In)	113 in (287 cm)
Overall Length - Operational Profile (Table Down, Tongue Extended)	133 in (337.8 cm)
Overall Chassis Operational Width	71 in (180.3 cm) — wide track axle design for high towing stability
Overall Machine Height (To Top of Discharge Chute)	102 in (259.1 cm)
Total Machine Weight (Standard Configurations)	1800 lbs (816.5 kg)
Chassis Structural Frame Composition	3/16 in (0.5 cm) heavy-duty structural ASTM A1011 steel plate
Axle Suspension Subsystem and Rated Capacity	Rubber-torsion ride axle assembly; rated capacity of 3307 lbs (1500 kg)
Pneumatic Tire & Wheel Specifications	Tires: 185/70R13; wheel rim profile: 4.5Jx13 with an offset of ET=25
Braking System & Towing Illumination	Mechanical parking brake assembly only; rear highway lights are high-visibility LED arrays
Towing Interface Coupler Type	Heavy-duty pintle ring hook / eye coupler assembly
Engine Infrastructure — Option 1 (Perkins Diesel Engine)
Make and Model	Perkins 403D-11 (In-line, 3-Cylinder, Naturally Aspirated Diesel)
Maximum Gross Output Power	25 hp (18.6 kw)
Maximum Peak Engine Torque Output	49.3 ft-lb (66.8 Nm)
Fuel Reservoir Capacity & Medium	6 gal (22.7 L) tank capacity; Diesel fuel type
Recommended Lubricant Specification	API CH4/SJ / ACEA E5 heavy-duty diesel engine oil
Engine Infrastructure — Option 2 (Kohler Gasoline EFI Engine)
Make and Model	Kohler ECH740 (V-Twin, 2-Cylinder, Gasoline Electronic Fuel Injection)
Maximum Gross Output Power	25 hp (18.6 kw)
Maximum Peak Engine Torque Output	41.7 ft-lb (56.5 Nm)
Fuel Reservoir Capacity & Medium	6 gal (22.7 L) tank capacity; Gasoline fuel type (EFI system mitigates flooding risks)
Recommended Lubricant Specification	Kohler Genuine Oil or alternative meeting API CH4/SJ standards
Disc Cutting Mechanism & Knife Parameters
Maximum Material Cutting Diameter Capacity	6 in (15.2 cm) maximum log/brush diameter
Cutting Disc Rotor Core Diameter	23.9 in (60.7 cm)
Cutting Disc Width & Structural Thickness	Width: 8 in (20.3 cm); structural plate thickness: 1.3 in (3.2 cm)
Operational Cutter Disc Running Speed	1748 rpm
Total Cutting Disc Weight (Including Shaft Assembly)	176 lbs (79.8 kg)
Cutting Knife Array Quantity & Thickness	2 active cutting knives; knife thickness: 0.6 in (1.5 cm)
Knife Composition Material Matrix	Premium heavy-impact A8 composition chipper-grade tool steel
Knife Structural Configuration	Dual usable cutting edges per blade; replaceable threaded block system with welded base fixture
Bedknife (Anvil) Geometrical Matrix	Horizontal bedknife: 4 in x 8.6 in (10.2 x 21.9 cm); Vertical bedknife: 4 in x 5.8 in (10.2 x 14.6 cm)
Bedknife Material Specification	High-strength structural ASTM A572 Grade 50 alloy steel
Internal Kinetic Forced Airflow Output	5000 cfm continuous air blast for clean material discharge projection
Disc Service Locking Mechanism	Heavy mechanical safety lock pin supporting 2 service orientation positions
Mechanical Disc Drive Transmitting Components
Main Cuttershaft Supporting Bearings	2 Linkbelt self-aligning flange-mounted ball bearings; shaft bore: 1.5 in (3.8 cm)
Bearing Mechanical Structural Capacities	Dynamic Load Capacity: 5640 lbs (2558.3 kg); Static Load Capacity: 4460 lbs (2023 kg)
Drivetrain Belt Architecture Type	2-band, 5-V wedge-profile heavy-duty Aramid fiber reinforcement belt
Drivetrain Belt Tensioning Assembly	Spring-loaded adjustable idler pulley mechanism
Hydraulic Proportional Material Feed System
Proportional Feed Roller Layout	1 single horizontal upper feed roller; diameter: 10 in (25.4 cm); roller weight: 100 lbs (45.4 kg)
Feed Roller Mechanical Compression Clamp Load	525 lbs (238.1 kg) downforce; combined dual action spring loading and heavy roller gravity mass
Minimum Structural Clearance (Roller to Disc)	4 in (10.2 cm) protective minimum proximity block
Feed Roller Hydraulic Motor Assembly	1 White Hydraulics high-torque motor; structural displacement rating: 14.2
Linear Material Feeding Proportional Speed	49.4 ft/min (15.1 m/min) continuous flow speed
Infeed Table & Hopper Geometrical Profile	Table Width: 41.2 in (104.6 cm); Table Length: 30.2 in (76.7 cm); Hopper Entrance Height: 22.1 in (56.1 cm)
Infeed Throat Material Gate Dimension	6 in x 8 in (15.2 cm x 20.3 cm) clear opening clearance
Infeed Table Elevation Height Above Ground	28.1 in (71.4 cm) convenient operational feed level
Infeed Hazard Safety Distance (Pinch Point)	Distance from the absolute outer table edge to the inner roller pinch point: 65.4 in (166.1 cm)
Hydraulic System Circuit Configuration	Open-center hydraulic flow path circuit
Main Pump Hydroflow Delivery Performance	3.8 gpm (14.4 L/min) output stream at maximum engine operational RPM
System Maximum Working Relief Pressure	2500 psi (172.4 bar) overpressure threshold safety setting
Fluid Tank Reservoir & System Filtration	6.8 gal (25.7 L) reservoir tank; high-efficiency 10-micron fluid filtration inline on return loop
Recommended Hydrosystem Oil Type	Premium Vermeer VMF Gold proprietary high-viscosity index hydraulic oil
Discharge Shroud System (Chute Structure)
Discharge Point Target Clearance Height	97.2 in (246.9 cm) elevation for trailer bed throwing clearance
Structural Steel Chute Sheet Thickness	Bottom plate, top plate, side wall plates, and directional deflector tip: 0.1 in (0.3 cm) thick steel
Chute Directional Rotation Array	270 degrees total horizontal sweeping rotation; manual actuation type with standard latch lock pin
Electrical control, Telemetry & Integrated Operator Safety Arrays
SmartFeed Automated System Logic	Proprietary load-sensing controller: continuously analyzes engine load metrics to automatically halt or cycle the feed roller in reverse when low RPM thresholds are broken
4-Position Top Feed Control Bar	Standard 2 in (5.1 cm) diameter bar; manual mechanical settings: Emergency Stop (E-stop), Forward, Stop, Reverse
Electronic Switch Bottom Feed Stop Bar	Standard 2 in (5.1 cm) diameter lower mechanical trip safety bar along the hopper floor frame. Engineered to cut feed roller circuit instantly when bumped by the operator's foot or lower leg
Circuit Reset Safety Activation Method	Dual green hold-to-run override buttons located outside the main feeding path; requires brief actuation to reset and engage forward roller travel
Chassis System Voltage and Instruments	12-volt system loop; Group 26 starter battery rated at 400 CCA; Vermeer ACS CB02 master control module; analog hour meter