Master Group

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Miscellaneous Tower Hardware

Material : Carbon steel, Stainless Steel , Brass ,Copper etc.
Standard : According to ISO, DIN, ANSI, JIS, ASTM etc.
Finish : Black, Plain, Zinc, Nikel, Chromium, Dacromet,Hot-dip Galvanized ,(comply RoHS)

We supply our customers superior quality products, like as HEX HEAD BOLTS, CARRIAGE BOLTS, HEX NUTS, HEAVY HEX NUTS, STUD BOLTS, STUDDING, THREADED ROD AND WASHERS.

MaterialDescription
Steel grade 2 Zinc plated low carbon steel. Best for general hardware use where high strength is not required.
Steel grade 5 Made from medium carbon steel, tempered and zinc plated. Best for automotive use and other areas where higher strength is desired.
Steel grade 8 Made from medium carbon alloy steel, tempered, and zinc plated. Best suited for applications where high strength and hardness is required.
Stainless steel 18-8 Stainless steel 18-8 is an alloy of steel with high corrosion resistance. Stainless has become the material of choice for exterior and most marine applications.
Silicon Bronze Bronze is an alloy of copper with greater strength and corrosion resistance than brass. Most commonly used in wood boat building and restoration. Hot dipped galvanized Hot dipped galvanized fasteners are much more corrosion resistant than zinc plated fasteners. Due to the thickness of the galvanized coating, galvanized bolts will only work with galvanized nuts. For exterior and coastal area use. (ASTM A153)
Grade 5 chrome A grade 5 fastener with a bright mirror-like finish providing sharp looks for a variety of applications.

    

Guy Wire

Master Tower supply 1/4",5/16" 3/8"&1/2" EHS galvanized steel wire is used for guying of guyed-towers. Breaking strength for 3/16"EHS is 3990 pounds; 1/4"EHS is rated 6000 pounds.

Cable Clamps

Three cable clamps are used to terminate guy wires. Available in four sizes: 3/16", 1/4", 5/16", and 3/8". These cable clamps are constructed of electroplated steel or hot dip galvanized as your requirement.

Thimbles

Thimbles prevent the crimping of guy wire and preformed guy grip terminations. They are used one size larger than the guy wire when terminated with cable clamps, or two sizes larger than the guy wire when terminated with guy grips. Available in three sizes: 1/4", 5/16", 3/8". Made of galvanized steel.

Preformed™ Big-Grip dead-ends

Preformed Big-Grip dead-ends are used to quickly terminate guy wires, replacing cable clamps. Available in 3/16", 1/4", and 5/16" sizes. Constructed of galvanized steel.

Shackles

 

Galvanised with Screwed Collar Pin.

Bolts&Nuts

HEXAGON HEAD BOLTS REFERENCE : DIN 931 PART1 MECHANICAL PROPERTIES : PROPERTY CLASS 8.8 METRIC COARSE THREAD     THREAD SIZE M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 Pitch 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 b 16 18 22 26 30 34 38 42 46 50 54 60 66 72 78 c min 0.15 0.15 0.15 0.15 0.15 0.15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 max 0.5 0.5 0.6 0..6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 min d       w 6.9 8.9 11.6 15.6 17.4 20.5 22.5 25.3 26.2 30 33.6 38 42.7 46.6 51.1 min e      8.79 11.05 14.38 18.9 21.1 24.49 26.75 30.14 33.53 35.72 39.98 45.2 50.85 55.37 60.79 k specific 3.5 4.0 5.3 6.4 7.5 8.8 10 11.5 12.5 14 15 17 18.7 21 22.5 min 3.35 3.85 5.15 6.22 7.32 8.62 9.82 11.28 12.23 13.78 14.78 16.65 18.28 21.58 22.08 max 3.65 4.15 5.45 6.58 7.68 8.93 10.18 11.72 12.72 14.22 15.22 17.35 19.12 21.42 22.92 min r       0.2 0.25 0.4 0.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 1.0 1.0 1.0 1.0 s max 8 10 13 17 19 22 24 27 30 32 36 41 46 50 55 min 7.78 9.78 12.73 16.73 18.67 21.67 23.67 26.67 29.67 31.61 35.33 40.0 45.0 49.0 53.8

Turnbuckles

Turnbuckles are used to tension guy wires. They are available in eye & eye, or eye & jaw formats, in 3/8" x 6", 1/2" x 9" 1/2" x 12", and 5/8" x 12" sizes.

 Ceramic Strain Insulators

Insulators are used to isolate guy wires into nonresonant lengths. The 500D can be used for 3/16"EHS, when terminated with cable clamps, and measures 2-1/4" long by 1-1/2" in diameter. The 500D is commonly referred to as an "egg insulator". The 502 is required for 1/4"EHS, or when using guy grips with either wire size, and measures 3-1/2" long, 2-1/2" in diameter. The 504 is for use with 5/16"EHS guywire, and measure 4-1/2" long, 2-7/8" in diameter.

Exothermic welding    "An exothermic connection is actually a molecular bond formed between 2 metals such as copper and steel. Copper oxide and aluminum are combined and ignited. The result is an exothermic reaction that products molten copper and aluminum oxide slag. The molten copper melts the objects being connected together forming the molecular bond. This bond will not loosen overtime or deteriorate with age. The connection's current carrying capability is to that which it is being connected. In other words, there is no increase in resistance in an exothermically welded connection as there is in most pressure connections." APPLICATION can be used in various applications to have the certainly good connections in work. Lighting and Surge Protection Grounding in Electrical Work Railway Construction Cathodic Protection Another High Capacity of Current Supply TYPE GO ONE WAY CABLE TO ROD (หนึ่งทาง+กราวด์) CODE NO. CABLE SIZE CABLE SIZE G0135 10-35   G0170 50-70 5/8" G01120 95-120 OR G01300 120-300 3/4" TYPE GTW TWO WAY CABLE TO ROD (สองทาง+กราวด์) CODE NO. CABLE SIZE CABLE SIZE GTW235 10-35   GTW270 50-70 5/8" GTW2120 95-120 OR GTW2300 120-300 3/4"   TYPE GTH THREE WAY CABLE TO ROD (สามทาง+กราวด์) CODE NO. CABLE SIZE CABLE SIZE GTH335 10-35   GTH370 50-70 5/8" GTH3120 95-120 OR GTH3300 120-300 3/4" TYPE CF FOUR WAY CABLE (สี่ทาง) CODE NO. CABLE SIZE CF435 10-35 CF470 50-70 CF4120 95-120 CF4300 120-300

TOWER CLIMBING AND FALL PROTECTION

Fall prevention systems are an essential component in tower planning, construction and use. It is equally essential to upgrade the safety systems of older towers to current standards. Workers who construct and maintain communications towers and other high structures are always at risk of a fall, particularly when working in wind or inclement weather. Enforcement of OSHA/CLC government regulations for worker safety at heights is becoming more stringent. OSHA mandates that some form of fall protection be supplied to employees who work at heights of 6 ft or more.

LED Warning Light (Obstruction Light) ไฟสัญญาณเตือนการบิน

Special Price = 4,500.-Bht. 

Specification

This subsection provides specification for the Low Intensity Aviation Obstruction Light.

Rated Lamp life

The rated lamp life for Low Intensity Aviation Obstruction Light is approximately 50,000 hours.

Environmental Operating Conditions

The Low Intensity Aviation Obstruction Light is designed to operate under the conditions presented below for temperature, relative humidity, and wind.

Temperature

-20°C t0 + 60°C

Salient Features of system

1.      Low intensity as per ICAO

2.       (International Civil Aviation Organization) and FAA (Federation Aviation Administration) standard.

3.      Easy installation.

4.      Surge protection from external atmospheric conditions.

5.      Self-protection of equipment and personnel on work.

6.      Omni-directional LED Aviation Warning Light conforms to ICAO annexure-14,chapter 6 under Low Intensity type “A”

7.      LED flash head operated through reliable power supply, with a dedicated photo-sensing device for night mode operation.

8.      The light housing is made of aluminum casting for all weather protection and humidity resistance.

9.      Lens is made from fine quality glass.

10.  All exposed hardware is made of non corrosive materials.

 Technical Specification

Input power supply                 :             220V 50Hz,Single Phase

Intensity                                  :           >10 cd

Beam Pattern                           :           Circular

Flash Rate                                :           30 to 60 FPM adjustable depend

                                                            Upon customer requirement

 Flash head

a) Weight                                 :           3 Kg

b) Wind load                            :           150 mph(240kph)

 Atmospheric Condition

Operating temperature                        :   -20°C t0 + 55°C

Humidity                                   :           95% relative humidity

Environment Protection           :           IP65 (For light)

                                                            IP55 (Control box)

Rated lamp life                         :           50,000 hours (apprx.)

 Wind pressure                         :           Up to 150 mph (240kph)

Resistance Corrosion               :           All parts are corrosion –resistant.

Moisture                       :           The fixture is moisture proof.

Special Price = 7,500.-Bht. 

Specification

This subsection provides specification for the Low Intensity Aviation Obstruction Light.

Rated Lamp life 

The rated lamp life for Low Intensity Aviation Obstruction Light is approximately 50,000 hours.

Environmental Operating Conditions

The Low Intensity Aviation Obstruction Light is designed to operate under the conditions presented below for temperature, relative humidity, and wind.

Temperature

-20°C t0 + 60°C

Salient Features of system

1.       Low intensity as per ICAO

        2.        (International Civil Aviation Organization) and FAA (Federation Aviation Administration) standard.

3.       Easy installation.

4.       Surge protection from external atmospheric conditions.

5.       Self-protection of equipment and personnel on work.

6.       Omni-directional LED Aviation Warning Light conforms to ICAO annexure-14,chapter 6 under Low Intensity type “A”

7.       LED flash head operated through reliable power supply, with a dedicated photo-sensing device for night mode operation.

8.       The light housing is made of steel casting for all weather protection and humidity resistance.

9.       Lens is made from fine quality glass.

10.    All exposed hardware is made of non corrosive materials.

Technical Specification

 Solar module :                                    5 watts

Solar panel dimension:                        300x285 cm.

Battery :                                               4.0 ah 10vdc.

Peak  Intensity    :                                > 13.5 cd.

Vertical Divergence :                            +/3 10 degree

Temperature arrange :                          -30°C - +55°C

Warranty                                              3 years LED lamps , 2 years for battery                                                     

LED. Lamp

Input power supply                        :                12 Vdc.

Intensity                                         :               >10 cd

Beam Pattern                                 :               Circular

Flash Rate                                      :               30 to 60 FPM adjustable                                                             

Flash head

a) Weight                                      :               3 Kg

b) Wind load                                 :               150 mph(240kph)

Atmospheric Condition

Operating temperature                 :               -20°C t0 + 55°C

Humidity                                        :               95% relative humidity

Environment Protection                 :               IP65

Rated lamp life                              :               50,000 hours (apprx.)

Wind pressure                              :               Up to 150 mph (240kph)

Resistance Corrosion                    :               All parts are corrosion –resistant.

Moisture                           :               The fixture is moisture proof.

 OPRERATION

        Only qualified personnel,physically capable of operating the equipment and with no impairments in their judgment or reaction times , should operate this equipment.

        Before starting this equipment, check all safety interlocks, fire-detection system, and protective device such as panels and covers. Make sure all devices are fully functional. Do not operate the system if these devices are not working properly. Do not deactivate or bypass automatic safety interlocks or locked-out electrical disconnects.

        Never operate equipment with a known malfunction.

        Do not attempt to operate or service electrical equipment if standing water is present.

         Use this equipment only the environments for which it is rated, Do not operate this equipment in humid, flammable, or explosive environments unless it has been rated for safe operation in these environments.

        Never touch exposed electrical connections on equipment while the power is ON.

For More Information Contact:
 

Master Tower & Equipment Co.,Ltd.

 

Master Power Co.,Ltd.

Address:

6/3 M.6 T.Namai A.Ladlumakeo C.Pathumthani 12140 Thaiand

          6/3 ม.6 ต.หน้าไม้ อ.ลาดหลุมแก้ว จ.ปทุมธานี 12140

Mobile: (+66) 08 9766-7210 , 08 4117-8765 (Mr.Santi), 08 9766-7214, 08 6375-2081-2 (Mrs.Orapin)

Office Tel :(+66) 0 2977-7620 ,0 2977-7851; 0 2977-7531 Fax : (+66) 0 2977 7531

Email :   santi@mastertower.com ; santi@mastercomm.net; mastertower@hotmail.com ; mastertower@gmail.com

Copyright © 2008 Master Tower & Equipment Co.,Ltd.

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