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Seismic Bases

Built-In Or Above The Floor

M/RAD Seismic Bases are used to couple vibration shakers and slip tables to a common base while isolating the vibration from the surrounding area. Bases can be supplied as stand alone units or integrated with a combined shaker/sliptable to provide a low profile system. The seismic base is a steel structure filled with reinforced concrete. The steel frame is constructed to provide all the strength and stiffness necessary under full dynamic load conditions. M/RAD Seismic Bases include a pneumatic isolation system under the base (2.2 Hz natural frequency), control panel and all interconnecting hardware. M/RAD also manufactures seismic bases provided in a pit, below the floor with air isolators. No seismic base is too large or small for M/RAD to engineer and construct.
500,000 lb. Seismic Base under Construction. Base Size: 17 Ft X 25 Ft. X 8 Ft. thick.

254 and "Low Profile" 954 Series

The 254 and 954 Series Seismic Bases are an above the floor base. The Model 254 is intended to act as a secondary floor to couple shakers with horizontal slip tables. This assembly is modular. The Low Profile 954 is an integral system where the shaker and slip table are combined into a single assembly.

TYPICAL SIZES OF 254 AND 954 SERIES BASES *

3 ft x 6 ft x 11 in;   3,000 lbs
4 ft x 6 ft x 16 in;   4,000 lbs
5 ft x 8 ft x 16 in;   6,000 lbs
5 ft x 9 ft x 11 in;   7,000 lbs
6 ft x 8 ft x 16 in; 10,000 lbs
6 ft x 10 ft x 16 in; 11,000 lbs
6 ft x 13 ft x 16 in; 17,000 lbs
7-1/2 ft x 10 ft x 16 in; 15,000 lbs
7 ft–10 in x 13 ft x 16 in; 18,000 lbs

* ANY SIZE QUOTED ON REQUEST


FEATURES

• To match any shaker/sliptable
• Manual Control Pneumatic Isolation System (2.2 Hz)


OPTIONS

• Servo Control to position the height of the air isolation system to + 0.005 inch.
• Elastomer Isolation (10 Hz)
• Casters and Track
• Air Glide

254; 7-1/2 ft x 10 ft x 16 in
 254; 7 ft-10 in x 13 ft x 16 in
954; 3 ft x 6 ft x 11 in with step for servo-hydraulic shaker
954; 3 ft x 6 ft x 16 in

SPECIFICATIONS AND PRICES SUBJECT TO CHANGE WITHOUT NOTICE

7007A-02