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HYDRAULIC TONG POSITIONER
ROGERS TONG POSITIONER MODEL HTP4-17
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Pedestal mounted, hydraulic powered box boom positioner.
Heavy duty marine environment design for marine based applications.
Standard use of high quality, common and easily repaired materials
and components. Designed and manufactured to meet or exceed a.p.i.
- 2c specification latest edition and specific requirements set
forth by the U.S. Dept. Of the Interior, Minerals Management Service.
Telescopic boom
The boom design is a 2-stage square tube box type and is constructed
of astm a-500, gr. B (min.) High strength steel.
10 foot retracted length – 17 foot extended length
Boom crowding
4” diameter hydraulic cylinder with chrome plated rod, bolt-on
rod end cap, and lock-check/counter balance valve. Heavy duty piston
seals are standard.
Boom luffing
7” diameter hydraulic cylinder with chrome plated rod, bolt-on
rod end cap, and lock-check/counter balance valve. Heavy duty piston
seals are standard.
Hydraulic power unit
The standard hydraulic power supply is provided by the Rogers oil
tool drill pipe tong hpu. The Rogers HTP4-17 tong positioner requires
10 gpm @ 2500 psi.
Upperstructure
The main rotating base (mainframe) is heavy duty, all welded steel
construction with machined base plate (+- .004) for mounting the
swing circle bearing and swing drive gear box. Supporting structure
is symmetrical in design with localized concentration of high stress
areas avoided. Standard astm a-36 steel plate (or equal) is employed
and is tested to astm a-578 level ii quality and astm a770 for resistance
to lamellar tearing.
Swing circle assembly
“bolt-on” shear ball or cross roller bearing with grade
8 mounting bolts is standard. 300,000 ft./lb. Nominal rating provides
for design service factor of over 5 including fasteners. Bearing
steel exceeds requirements of astm specification a-295 and conforms
to astm e45 method a in cleanliness. Hydraulically driven planetary
swing drive provides 180 degree smooth rotation. Automatic swing
parking brake is standard.
Corrosion protection system
Traditional three (3) coat marine paint system. Weldments are blasted
to near white finish. An inorganic zinc primer, hi-build epoxy polyamide
aluminummastic intermediate coat, and a polyurethane finish coat
is applied. All hydraulic fittings / adapters and fasteners are
zinc or cadmium plated. Pins are stainless steel and lifting eyes
are provided on all major components.
Pedestal
Astm a-36 (or equal) flange mounting machined to +/- .004”
24” diameter by 70.5” high with 45 or 30 degree weld bevel.
Rogers‘ model htp4-17 summary
Standard boom
2 stage - 17 ft. Telescopic box
10 ft. Retracted – 17 ft. Extended
17-4ph stainless steel boom pivot pin
stainless steel pin keeper plates
Boom crowding
4” double acting hydraulic cylinder
17-4ph stainless steel connector pins
stainless steel pin keeper plates
Boom luffing
7” double acting hydraulic cylinder
17-4ph stainless steel connector pins
stainless steel pin keeper plates
Materials
boom - astm a-500, gr. B or higher
pins - 17-4ph h-1150 stainless steel
upperstructure - astm a-36 or higher
pedestal- astm a-36 or higher
Control station
integral to r.o.t. drill pipe tong
Pedestal
24” OD x 70.5” height
30 or 45 degree weld bevel
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