Martin Engineering M3786-03/19
1
Martin
®
Modular Slider Cradle
Introduction
General
The Martin
®
Modular Slider Cradle holds conveyor belts in a stable, sag-free
position to allow effective sealing. By minimizing belt vibration and sag, the
Martin
®
Modular Slider Cradle reduces escaping material and risk of damage
to the belt and conveyor accessories. Martin
®
Modular Slider Cradle bars
provide a low-friction, self-lubricating surface for conveyor belts to skim over
without heat buildup or undue wear on the belt surface or bars (see
specifications in Table I). The Martin
®
Modular Slider Cradle is not intended
to absorb impact.
Martin
®
Modular Slider Cradles are recommended for moderate- to severe-
duty belts from 36- to 60-in. (1000- to 1600-mm) wide. Cradles are not
recommended for conveyors operating at speeds over 700 fpm (3.5 m/s) or
that are less than 50 ft (15 m) in length. To improve belt support on short
conveyors or high-speed belts, contact Martin Engineering.
The Martin
®
Modular Slider Cradle conforms to CEMA Standard No. 502-
1980 Bulk Material Conveyor Troughing and Return Specifications (CEMA
Class D6).
Table I. Martin
®
Modular Slider Cradle Bar Specifications
References
The following documents are referenced in this manual:
• American National Standards Institute (ANSI) z244.1-1982,
American
National Standard for Personnel Protection - Lockout/Tagout of Energy
Sources - Minimum Safety Requirements
, American National Standards
Institute, Inc., 1430 Broadway, New York, NY 10018.
• Federal Register, Volume 54, Number 169, Part IV, 29 CFR Part 1910,
Control of Hazardous Energy Source (Lockout/Tagout); Final Rule
,
Department of Labor, Occupational Safety and Health Administration
(OSHA), 32nd Floor, Room 3244, 230 South Dearborn Street, Chicago, IL
60604.
Safety
All safety rules defined in the above documents, and all owner/employer
safety rules must be strictly followed when working on the Martin
®
Modular
Slider Cradle.
Materials required
Only standard hand tools are required to install and service this equipment.
Bar construction
UHMW polyethylene
Bar dimensions
2.9-in. (72-mm) high
5.0-in. (127-mm) wide
48-in. (1220-mm) long
Coefficient of friction
0.5
Specific gravity
0.94
Tensile strength
6800 lb at 73°F (23°C)
Hardness
62 (Shore D)
Service temperature
-20 to 140°F (-29 to 60°C)
Introduction
Summary of Contents for M3786
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