Welded Steel Construction
Crane boom, mast and base fabricated from heavy-duty welded constructed structural steel pipe and tubing that limits deflection and meets ASTM standards.
Telescopes to 5 different lengths and supported by boom brace (comes standard).
Manual or Power Operation
Thern davit cranes can be configured with a spur gear manual winch or power winch. Choose from Thern’s manual winch or power winch with 115/1/60 as standard. Other voltages available as well as pneumatic, hydraulic or DC Volt power operation.
Corrosion Resistant Finish
Red enamel finish on crane and stainless steel fasteners combine to resist corrosion in harsh environments. Other options available include: galvanized and epoxy finishes.
Easy Assembly / Disassembly
Quick-release clevis style stainless steel pins allow for easy assembly and quick disassembly for transport or storage. No tools required.
Boom and Outer Mast Rotate
Boom and mast rotate on tapered roller bearing and needle bearings for smooth 360° rotation. Outer mast locks in one of twelve positions at 30° increments with locking pin. Rotational handle located on outer mast for easy rotation.
Variety of Bases (sold separately)
Pedestal, flush and wall mount bases allow for a variety of mounting solutions and are easily installed. Standard red enamel finish on pedestal, flush and wall mounts. Other finish options available including galvanized and epoxy finishes.
Two-Year Warranty
Industry-leading two-year limited warranty on all our products.
IMPORTANT:
It is the owner’s or operator’s responsibility to determine the suitability of the equipment to its intended use. Study all applicable codes, manuals and regulations. Be sure to read the Owner’s Manual supplied with the equipment before operating it.
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(ft)
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(m)
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(ft)
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(m)
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(in)
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(mm)
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(ft)
|
(m)
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(lb)
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(kg)
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(lb)
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(kg)
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(lb)
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(kg)
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0
|
0
|
8
|
2.4
|
3/8
|
9.5
|
28
|
8.5
|
3000
|
1361
|
2700
|
1225
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2400
|
1089
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|
8
|
2.4
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16
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4.8
|
3/8
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9.5
|
36
|
11.0
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3000
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1361
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2700
|
1225
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2400
|
1089
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|
17
|
5.1
|
25
|
7.6
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3/8
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9.5
|
45
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13.7
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3000
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1361
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2700
|
1225
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2400
|
1089
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|
32
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9.7
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40
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12.1
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3/8
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9.5
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60
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18.3
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2800
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1271
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2700
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1225
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2400
|
1089
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|
47
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14.3
|
55
|
16.7
|
3/8
|
9.5
|
75
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22.9
|
2600
|
1180
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2400
|
1089
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2400
|
1089
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1 Lift below floor level varies depending on boom position and base configuration. For longer lifts, please contact factory.
2 Add 3 feet to lift below floor level for Model 5PT30-E5A1.
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Headache Ball
Keeps cable taut when no load is attached. Attach to cable.
- HB10-25-38 – Red Enamel Steel, fits 1/4 to 3/8 inch wire rope. Approx. ship weight: 10 lb (4.5 kg).
- HB10S-25-38 – 316 Stainless Steel, fits 1/4 to 3/8 inch wire rope. Approx. ship weight: 10 lb (4.5 kg).
- HB10S-44-55 – 316 Stainless Steel, fits 7/16 to 1/2 inch wire rope. Approx. ship weight: 10 lb (4.5 kg).
Boom adjusts in height while under load with optional ratchet style screw-jack.
Factory Load Test
Upon request, Thern can test your crane prior to shipping, up to 125% of rated load. Contact factory for pricing and availability prior to order.
Extended 5-Year Warranty
Extend our standard 2-year warranty to 5 years. Contact factory for pricing and availability prior to order.
PE Stamp – Professional Engineer Stamp
Available upon request at time of order. Contact factory for pricing and availability prior to order.
Certifications
CE and ATEX certifications available.
Explosion Proof Classification
Special configurations for use in explosive settings available. Contact factory for pricing and availability prior to order.
Power Winch Operation
AC electric in any voltage. DC electric, hydraulic and pneumatic power winches available.
Custom Electric Controls
Thern can build the high quality controls you need to operate your equipment.
Limit Switch
Add an emergency safety shut-off to ensure safe operation.
Customization
Customization is available for almost all Thern products and should always be performed by our engineers to assure the changes meet our stringent quality standards. Below are some of our more common customization requests. Only factory modifications are covered under warranty.
- Longer Lift Distances
Customized winch and crane configurations to accommodate longer lifts.
- Custom Colors & Finishes
Custom colors and finishes are available to match your unique application.
- Extended Boom and Masts
Thern can extend mast heights and boom lengths to fit your needs.
- Special Bases
Custom bases or mounting requirements can be manufactured to meet your unique situation.
Admiral 3000 — Model 5PT30J crane with screw-jack, M452B-K spur gear hand winch and 5BP30 pedestal base.
