TR521 Tier 4i (Stage IIIB) Trommel Screen

Trommel Screen | Vermeer Tier 4i (Stage IIIB)
The 110 hp (82 kW) TR521 Tier 4i (Stage IIIB) trommel screen is specifically designed for topsoil with high moisture content, processing wet material with consistent results. Screen enhancements to the drum enable quicker and simpler change out and tensioned screens allow for increased overall open screen area. The revamped TR521 with wireless remote control offers intelligence to the machine for operational setting control and enhances safety by allowing the operator to monitor from a loader cab or distant location.

Features and Benefits

  • Move material smoothly without bridging, thanks to a tall, wide throat opening.
  • Access doors along sides, entry from the end and catwalk from the top of the machine provide superior drum service access.
  • Square lift bars inside the drum enables more material to be carried at a slower drum speed helping decrease fuel consumption.
  • Wireless remote control unit allows operator to view and change a variety of settings during operation, while monitoring various engine parameters from inside the loader cab or in a remote location.
  • See your Vermeer dealer for comprehensive service and genuine Vermeer replacement parts.

Download Specs

TR521 Tier 4i (Stage IIIB) Trommel Screen

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General Dimensions and Weights
Weight
39700 lbs
18007.6 kg
Hitch Weight
13400 lbs
6078.1 kg
Transport Length
46.5'
14.2 m
Transport Width
102"
259.1 cm
Transport Height
13.1'
4 m
Operation Length
86'
26.2 m
Operation Width
102"
259.1 cm
Operation Height
15.9'
4.8 m
Capacity
150 cu yd (114.7 m3) per hr with .5" (1.3 cm) screens installed and material with moisture less than 40%
Engine
Make and Model
Cummins B3.3L Tier 4i (Stage IIIB)
Number of Cylinders
4
Fuel Tank Capacity
80 gal
302.8 L
Fuel Consumption
2.8 gph (10.6 L/hr) under most operating conditions   
Maximum Engine Operating Angle (Operating angles do not indicate safe machine operating angles)
30 deg
Battery
950 cold cranking amps
Oil Filter
Spin-on
Recommended Oil
Mobil 15/40
Oil Volume with Filter
11.8 qt
11.2 L
System Voltage
12 V, 60 amp alternator
Air Cleaner
Dual element oversized
Radiator Fan
Suction type
Hydraulic System
Operation
62.9 gpm @ 2500 psi (238.1 L/min @ 172.4 bar)   
Tank capacity
157 gal
594.3 L
Chassis
Frame Description
Four independent hydraulic jacklegs
Axle/Suspension
Leaf spring
Capacity
22500 lbs
10205.8 kg
Tires - Option One
235/75R; 17.5 H qty 8
Hopper and Apron Conveyor
Hopper Capacity
5 cu yd
3.8 cu m
Hopper Bottom Width
34"
86.4 cm
Apron Conveyor Speed
0-35 fpm (0-10.7 m/min)   
Apron Opening Height
34"
86.4 cm
Apron Opening Width
37"
94 cm
Hopper Height
9.5' (2.9 m) from ground level at operating incline
Hopper Opening
13.2' x 5' (4 m x 1.5 m)
Apron Conveyor Length
15'
4.6 m
Apron Conveyor Belt Width
42"
106.7 cm
Apron Conveyor Rollers
6" (15.2 cm) diameter qty. 13
Screen Drum
Drum Operation
0-33.1 gpm (0-125.3 L/min)   
Drum Motor
48.8 cu in (800 cu cm) displacement   
Drum Diameter
5'
1.5 m
Drum Support Description
Four steel trunnion rollers 8" (20.3 cm) diameter 4" (10.2 cm) width
Thrust Bearing Diameter
5"
12.7 cm
Thrust Bearing Face
2.9"
7.4 cm
Drum Speed
0-24 rpm
Drum Drive Chain
120 WT
Drum Angle Adjustability
3-5 degrees
Maximum Screen Panels
6
Screen Brushes
Brush Diameter
14"
35.6 cm
Bristle Material
Polyethylene
Brush Assembly Support
Two 1.25" (3.2 cm) sealed ball bearings
Fines Conveyor
Conveyor Operation
19 gpm
71.9 L/min
Conveyor Motor Displacement
28.3 cu-in
463.8 cu-cm
Fines Conveyor Length
65'
19.8 m
Fines Belt Speed
515 ft/min
157 m/min
Conveyor Belt Width
36"
91.4 cm
Conveyor Belt Type
220 lb (99.8 kg), 2 ply, 3/16" x 1/16" (4.8 mm x 1.6 mm)
Conveyor Belt Stacking Height
14.5' (4.4 m) with drum at 4 degree
Head Pulley Type
Rubber lagged, 12" (30.5 cm) diameter, 38" (996.5 cm) wide
Head Pulley Bearing
2.5" (6.4 cm) pillow block
Rubber Flashing
Adjustable, .25" (6.4 mm) thick, 4" (10.2 cm)
Troughing Idler Type
20 degrees CEMA "B" with permanently sealed bearings spaced at 24" (61 cm) centers
Self-Cleaning Tail Pulley Dimensions
10" (25.4 cm) diameter, 38" (96.5 cm) wide with 2.4" (6.1 cm) shaft
Tail Pulley Takeup
12"
30.5 cm
Self-Cleaning Return Idlers
7, each 4" (10.2 cm) diameter
Fines Conveyor Frame
4" x 8" (10.2 cm x 20.3 cm) structural steel building
Overs Conveyor
Overs Conveyor Length
20'
6.1 m
Maximum Variable Overs Belt Speed
290 ft/min
88.4 m/min
Conveyor Belt Size
36" (91.4 cm)wide with raised crescent
Conveyor Belt Type
220 lb (99.8 kg), 2 ply, 3/16" x 1/16" (4.8 mm x 1.6 mm)
Conveyor Belt Stacking Height
3' (.9 m) x 10' (3.4 m)
Head Pulley Type
Rubber lagged, 12" (30.5 cm) diameter, 38" (996.5 cm) wide
Head Pulley Bearing
2.5" (6.4 cm) pillow block
Self-Cleaning Tail Pulley Dimensions
10" (25.4 cm) diameter, 38" (96.5 cm) wide with 2.4" (6.1 cm) shaft
Tail Pulley Takeup
12"
30.5 cm
Solid Return Idler Size
4" (10.2 cm) diameter
Overs Conveyor Frame
2.3" x 8" (5.7 cm x 20.3 cm) structural steel tubing