Nj Safety Torque-Limited Contact-Type Backstop, Conveyor Hold Back Device
Product Specifications
| Prod Model: |
NJ |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Rated Holdback Moment Te: |
11000n.M-700000n.M |
| Highest Speed Of Inner Race: |
50r/Min-150r/Min |
| Standards: |
ASTM,DIN,Sha,Cema.etc |
| MOQ: |
1set |
| Terms Of Shipment: |
by Sea |
| Package: |
Wooden Case, Iron Case, Iron Cage, Frame |
Product Description
NJ Safety Torque-Limited Contact-Type backstop, Conveyor Hold Back Device
1. Structural features and operating principle
NJ(NYD) contact type wedge holdback (hereinafter referred to as "holdback") is a type of contact type anti-reversing device installed on the low speed shaft of the reducer or pulley shaft, compared with conventional holdback (roller holdback etc.), it has the advantages of big brake moment, reliable drive force, easy release, convenient installation (the requirement for installation accuracy is not high), it is composed of several wedges arranged in certain pattern between the raceways formed by inner race and outer race, when the inner race rotates in opposite direction, under the action of spring force, the inner race and outer race are wedged into an integral part so as to bear the holdback moment , it is widely used on the equipment with holdback requirement such as belt conveyor, bucket elevator etc.
2 Main technical parameters and structural dimensions of NJ holdback Unit: mm
Specification | Rated holdback moment
Te(N.m) | Range of hole diameter d
(mm) | Highest speed of inner race
(r/min) | Idle resistance moment
(N.m) | Structural dimensions | Max. mass
(kg) |
| A | B | D | H | h | h1 | Φ | L | L1 |
| NJ110 | 11000 | 90-110 | 150 | 15 | 110 | 12 | 270 | 425 | 65 | 40 | 26 | 110 | 141 | 46.1 |
| NJ130 | 16000 | 100-130 | 100 | 20 | 120 | 12 | 320 | 506 | 65 | 32 | 26 | 130 | 161 | 82.8 |
| NJ160 | 25000 | 120-160 | 100 | 25 | 120 | 20 | 360 | 612 | 65 | 32 | 31 | 140 | 183 | 125 |
| NJ200 | 38000 | 160-200 | 100 | 45 | 130 | 20 | 430 | 623 | 70 | 43 | 41 | 160 | 270 | 180 |
| NJ(NYD)220 | 50000 | 160-220 | 80 | 75 | 238 | 256 | 500 | 820 | 80 | / | / | 230 | 303 | 351 |
| NJ(NYD)250 | 90000 | 180-250 | 50 | 95 | 288 | 323 | 600 | 1000 | 100 | / | / | 290 | 367 | 675 |
| NJ(NYD)270 | 125000 | 200-270 | 50 | 100 | 298 | 323 | 650 | 1100 | 110 | / | / | 290 | 367 | 737 |
| NJ(NYD)300 | 180000 | 230-300 | 50 | 110 | 356 | 335 | 780 | 1300 | 135 | / | / | 290 | 392 | 1123 |
| NJ(NYD)320 | 270000 | 250-320 | 50 | 140 | 386 | 345 | 850 | 1500 | 135 | / | / | 320 | 412 | 1425 |
| NJ(NYD)350 | 320000 | 250-350 | 50 | 160 | 414 | 360 | 930 | 1600 | 135 | / | / | 360 | 426 | 1955 |
| NJ(NYD)420 | 520000 | 320-420 | 50 | 220 | 474 | 484 | 1030 | 1800 | 165 | / | / | 450 | 550 | 2930 |
| NJ(NYD)450 | 700000 | 350-450 | 50 | 250 | 526 | 494 | 1090 | 2000 | 165 | / | / | 480 | 574 | 3380 |
Note: the hole tolerance is F7 (GB1800-1804-1999), the recommended shaft tolerance is h6 and fit tolerance is F7/h6
Anhui Pandeng Industries Joint Stock Co., Ltd belongs to Anhui Pandeng Group established since 1974, which has total capital of 106000000USD, registered capital of 58000000USD, catches the size of 463500 square meters, owns over 1000 workers. Group owns three famous brand of "PANDENG", "OUNA", "KINSON".
We are specialized in developing, designing, manufacturing bulk material handling system, like belt conveyor, pipe conveyor, bucket elevator, screw conveyor, conveyor roller, idler, pulley, hydraulic coupling, backstop, various kinds of conveyor belt etc nearly all products related to the conveyors. The products mainly applied to mining, metallurgy, power generation, heating, sea port, grain, chemical etc industries.
Our group has 5 subsidiary corporation, owns over 100 patents. Two sub-companies have attained ISO9001: 2008 Quality Management System Certificate, MA certified enterprises, Member of China Heavy Machinery Industry Association, Bank AAA credit class enterprise, China top 10 conveying machinery industries etc. During 40years, we served many Global 500 companies, such as SINOPEC, CNPC, APP, SHENHUA GROUP CORP, SGCC, Conch Group, CHALCO, Baosteel, etc.
Professional design, developing and manufacturing, installation&commissioning, after-service of Anhui Pandeng Group has helped us to win the China famous Bulk Material Handling system leading position. We also built stable and good cooperation relationship with over 30 Design&Research Institutes including Beijing lifting conveying machinery design&research institute.
Welcome to visit Anhui Pandeng Group!
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