ROHN RTL 90 Foot Medium Duty Tower Kit RTL090M
ROHN RTL090M Complete 90' RTL Medium Duty Tower Kit
The NEW ROHN RTL Medium Duty Series is a Pre-engineered Spec Tower that covers a Specific Loading Range (The Tower Itself PLUS Attachments/Appurtenances) within Limits based upon Wind, Topography, Ice and Earthquake Stresses Compared to the Type, Dependancy and Survivability of its Use Against Surrounding Population and Development Concerns as Outlined in Risk Categories I, II, III or IV of the ANSI/TIA-222-H Standard. The Towers are made of round pipe legs with angle bracing, and has an optional full size template available for the anchor bolts. All sections are knocked down which helps reduce shipping cost.
If You need Stamped Engineering Drawings and/or a Tower Designed with Considerations for a Specific Use; Please Download the RFQ-Request For Proposal Sheet HERE
FEATURES
• Standard Series available in heights up to 190'
• High strength (50 ksi) legs, angle bracing and connection plates
• High strength structural bolts
• Round legs for easy mounting of antennas, mounts and other appurtenances
• Compatible with ROHN Standard accessories
• Hot-Dip Galvanized after fabrication
• Open cross section at ends of legs for complete galvanizing protection
• Knockdown bolted construction for efficient shipping, assembly and future upgrades
• Complete assembly drawings provided with the tower
• Standard and site-specific foundation designs available
• PE Certification available for standard or site-specific applications
• Custom tower designs available for heights up to 350'
Accessories available:
- Platforms
- Antenna Mounts
- Tower Climbing Ladders
- Lighting Accessories
- Mounting Frames
- Ice Shields
- Safety Climbing Devices
- Grounding
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Square & Round Bend U-Bolts
Square or Round top zinc plated or Hot Dipped Galvanized steel u-bolts are designed for outdoor corrosion resistance. Use for mounting tubing & Square brackets, designed to support most WiFi, PCS, Cellular and TV antennas. Allows you to vary the mounting pipe length and diameter
You can increase the amount of strength and holding power by utilizing multiple mounts space out over the length of the mounting pipe. There are many reasons you might need to use these mounts and they mostly involve the need to attach a pole to another pole to either extend the original or simply as an attachment point.
Bolts Grades
GRADE 325
Is a structural bolt specification covering inch and metric bolt grades. This specification contains 4 inch series bolting grades: A325, F1852, A490, and F2280. These will be addressed in this article. When looking at the mechanical requirements of bolts it appears that a grade A325 and SAE J429 Grade 5 are identical as do the grade A490 and the SAE J429 Grade 8.
This begs the question, “Can an SAE J429 Grade 5 be used when an ASTM F3125 grade A325 is specified?” The answer is definitely not. This is also the case for substituting a Grade 8 when grade A490 is specified, and here are some reasons why:
First, grade A325 and A490 bolts are produced with a heavy hex head configuration which provides a wider bearing surface over which to distribute the load. Grade 5 and 8 bolts are produced to standard hex cap screw configuration and therefore cannot distribute the load as much as is needed for structural applications.
Second, the shank length (non-threaded portion of the body) on the grade A325 and A490 bolts is designed to be greater (shorter thread lengths) than your standard hex bolt or hex cap screw.
Remember, the weakest section of standard carbon steel fasteners is through the threaded region. Minute design changes such as this can create a stronger tensile connection. ASTM F3125/F3125M is a structural bolt specification covering inch and metric bolt grades. This specification contains 4 inch series bolting grades: A325, F1852, A490, and F2280. These will be addressed in this article. When looking at the mechanical requirements of bolts it appears that a grade A325 and SAE J429 Grade 5 are identical as do the grade A490 and the SAE J429 Grade 8.
Grade 5
Alloy steel is a medium carbon zinc plated alloy steel that is heat treated to increase hardness. Grade 5 bolts have three (3) evenly spaced hash marks on the head marking
Threaded Rods
Get hard to find galvanized threaded rods with all the hardware included. Use to replace broken parts or make you own pipe to pipe mount
