3. 鼓式剎車HI-TORK DRUM BRAKE                                                                            下載down load  
      3-2.內容和頁數導引說明CONTENTS AND PAGE REFERENCE GUIDE
　   3-3.介紹說明INTRODUCTION
　   3-4.介紹說明INTRODUCTION 
      3-5.DC磁鐵操作剎車DC MAGNET OPERATED BRAKES 
      3-6.DC磁鐵操作剎車DC MAGNET OPERATED BRAKES
      3-7.3相AC油壓致動器剎車
             3 PHASE AC HY-THRUST TM ACTUATOR BRAKES
      3-8.3相AC油壓致動器剎車
             3 PHASE AC HY-THRUST TM ACTUATOR BRAKES
      3-9.3相AC油壓致動器操作/防爆和防火焰剎車

             3PHASE AC HY-THRUST TM OPERATED EXPLOSION-PROOF AND FLAME-PROOF BRAKES
      3-10.氣動和油壓操作剎車PNEUMATIC AND HYDRAULIC OPERATED BRAKES
      3-11.油壓(踏板式)剎車HYDRAULIC (PEDAL) OPERATED BRAKES
      3-12.踏板操作油壓系統加到SA , ST和ST/E剎車

              PEDAL OPERATED HYDRAULIC OVER-RIDE SYSTEM FOR ADDING TO BRAKE TYPES SA ,

              SA/M , ST AND ST/E BRAKES
      3-13.手輪和拉桿致動剎車HANDWHEEL AND LEVER APPLIED BRAKES     
      3-14.對稱和偏一邊剎車輪轂SYMMETRICAL AND OFFSET HUB BRAKE WHEELS     
      3-15.齒輪型剎車鼓連軸器GEARED BRAKE WHEEL COUPLINGS
      3-16.齒輪型剎車鼓連軸器GEARED BRAKE WHEEL COUPLINGS    
      3-17.DC磁鐵剎車(SA和SA/M箱型)整流和控制器

              DC MAGNET BRAKE (TYPES SA AND SA/M) RECTIFIERS AND CONTROLLERS      
      3-18.剎車控制箱BRAKE ENCLOSURES

The ST (and ST/E) type，3-phase AC shoe brakes are spring applied-electrically released by a completely sealed， continuously rated，Hy-Thrust actuator. These brakes are designed with a  minimum number of parts 1.0 provide a long service life with reduced maintenance and downtime

This versatìle brake can be applied to a wide range of applications and environmental conditions，where smooth， responsive stopping and holding is required. The cushioned brake action produces signmcantly less mechanical oscillations as compared to the DC Armature or the AC Solenoid type brakes. The latter are notoriously expensive to maintain in terms of spare parts and downtime.The inherent cushioning effect makes the brake ideal for high duty cycles or jogging applications，virtually  eliminating mechanical shock loading

which can lead to increased component wear and or component failures.

Since the growth in popularlty of AC controlled cranes，this brake has rapidJy become the standard for all crane motions. It has the same high reliability that is normally associated with the  DC Armature brakes，
but does not require an expensive transformer/rectifier controller to supply the DC power.

• STANDARDFEATURES 標準特性
• Fast response times
• High switching frequency-1200 to 2000 operations per hour
• Long service life-20mlllion switching cycles
• Working f1uidoperating  range -吟。F ( 。C) through

122  F (50 C)

• Built-in compression sp討ng (Standard "ST" Type)
• Available for 230VAC，460VAC，575VAC/3 Ph/60Hz as standard.
• Environmentally safe molded non-asbestos brake IInings provide a constant coefficient of friction over the normal operating temperature range.Convenient adjustments for torque，lining wear and shoe clearance.
• Manual release lever
• Floor mounting
• OPTIONAL FEATURES 選用特性
• Stepless，extemally adjustable time detays for Setting ("S"，)

Releasing (“H")

• Special f1uidsoperating in extreme ambient temperatures
• Extemaltorque spgs(“ST/E"Type)

﹒Tropiiz，explosion-proof and f1ame-proof units available

• Corrosion protection
• Braketronic stepless remote braking available (nsult factory)

•  Hydraulic pedal operated manual over-ride systems

BRAKING TORQUES 剎車扭力

The standard Type “STnternal torque spring)

• Torque spring compression rating is fixed within the thruster.
• Prsettoues ng provided by pull rod pivot pin locations (3).
• Torque may be reduoed to 60% of maximum rating. The optionalType “ST/E"(temaltoue spng)
• Provides steple torque adjustrnent﹒ Torque adjustment made by rotating the nut atop the spring

tube assembly.Torque may be reduced to 40% of maximum rating.

• Theactualsetting can be read on the calibrated toue inditor (C.T.I.) 10ted in the side of the spring tube assembly.