220M & 220H
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Motorized Pulley 220M & 220H, 0 216 mm To match your requirements in diameter 216 mm, our product range offers two different loading performances for your BULK applications: - M for Medium-duty - H for Heavy-duty You have a choice. Therefore, it is important to notice the differences to choose the right type of pulley for the right application based on estimated belt tension (radial load) = T1+T2. The actual radial load MUST be LESS than the max. allowable radial load shown in this catalogue. Be aware of increased belt tensions using multi-ply thick heavy belts and/or larger belt widths. If you do not find the belt tension needed in this diameter, you might have to choose a larger one. M for Medium-duty The internal parts of 220M are designed to match irregular working conditions in applications such as mobile crushing & screening, cement & concrete plants, mobile conveyors and open stone & gravel pits. 220M provide sufficient belt tension. H for Heavy-duty A reinforced 3-stage-gearbox provides 220H with the necessary strength needed for low speeds, high torque and the listed belt tension. 220H is popular in re-cycling (hand sorter conveyors), bunker discharge conveyors and where a combination of slow speed and high torque is required. For the choice of the Motorized Pulley it is very important to know or to calculate the belt tension T1+T2 (radial load). This MUST NOT OVERCOME the "max. radial load" allowed as shown in the catalogue. Be careful to very high belt tensions when using thick, heavy and/or large belts. If this type cannot provide the necessary max. radial load T1+T2, you have to choose a Motorized Pulley with a bigger diameter. STANDARD SPECIFICATION of Motorized Pulley • Crowned mild steel 0 216 mm steel shell treated with anti-rust wax • Powder coated cast iron bearing housings • Mild steel shafts treated with anti-rust wax • Shaft sealing system - degree of protection IP66/67 (EN60034-5) • Compact powder coated die cast aluminium terminal box • Larger powder coated die cast aluminium terminal box >= 5.5 kW • 3-phase induction motors with thermal protector • Voltage: wide range 3-phase single voltage. Most common voltages available. Please specify! • Motor winding insulation Class F • Dynamically balanced rotor • One out of two oil plugs fitted with a magnet to filter the oil • Oil change recommended every 20.000 operational hours • Minimum RL. Please refer to pages 23-24 • Maximum RL - Please inquire! • Non standard RL's available • To be used in horizontal positions ± 5 degree only! Please note: • Straight or elbow connector available • Parallel shell available. Diameter equal to dimension 0 A • Two speed motors on request • Special speed available on request • Motorized Pulleys for non-horizontal positions available on request • The high speed of 2-pole motors can cause higher noise levels and are therefore not recommended in noise sensitive areas STAINLESS STEEL options TS9N • Stainless steel shell - AISI 304 range • Stainless steel shafts - AISI 303/4 range • Stainless steel covered bearing housings - AISI 316 range • Stainless steel oil plugs - AISI 304 range - one out of two with magnet • Stainless steel exterior bolts - AISI 304 range • Re-greasable labyrinth seals with grease nipples in stainless steel - AISI 304 range • Shaft sealing system - degree of protection IP66/67 (EN60034-5). TS10N • As TS9N, but WITHOUT re-greasable labyrinth seals. SEMI-RUST-FREE options TS11N • As TS9N, but with crowned mild steel 0 216 mm steel shell treated with antirust wax. TS12N • As TS10N, but with crowned mild steel 0 216 mm steel shell treated with antirust wax. Other Options: • FDA & USDA food grade recognized oil and grease are NOT included in TS9N to TS12N, but available on request • Complete Motorized Pulleys in acid resistant stainless steel - AISI 316 range - on request. Electrical connection options: • Salt water resistant powder coated aluminium terminal box with zinc plated exterior bolts • Stainless steel terminal box - AISI 304 range (max. 4 kW) • Straight stainless steel connector with flying lead - AISI 304 range (max. 4 kW). When ordering, please specify the required voltage, electrical connection and eventual TS-number, options, brackets and idler pulleys. • Environmental considerations: page 77-78 • Technical precautions: pages 81 -92 • Optional extras: page 21 and back cover • Connection Diagrams: pages 98-100.