EFFECTIVE: 3/99 SUPERSEDES: 5/96

U.S. GAUGE • HUNTER SPRING PRODUCTS • 900 Clymer Avenue, Sellersville, PA 18960 U.S.A. • Tel: (215) 257-6531 • FAX: (215) 257-3058 • www.ametekusg.com

BULLETIN SDR-103KEY #U999827

U.S. GAUGEHUNTER SPRING PRODUCTS

STATIC GROUNDING/BONDING REELS

Compact, LightweightAutomatic RetractionWeather Resistant Finish100 Amp Alligator ClampTermination

F E A T U R E S

ROTA-REEL® Grounding/Bonding ReelsFor General Applications

Hunter Spring Static Grounding/Bond-ing Reels can be used when combus-tible materials are transferred betweencarriers. For use where a discharge ofstatic electricity could cause a sparkand subsequent explosion, such asbulk stations, airports, terminals andrefineries. Built for reliable performance,Rota-Reel grounding reels feature aSPIR’ATOR® prestressed spiral springfor easy extension and automatic re-traction. A pawl and ratchet permits youto lock the cable at any desired length.A simple tug on the cable unlocks thereel for smooth, steady retraction. Thestandard termination is a 100 amp alli-gator clamp. A ball stop on the cableassembly keeps the cable end withineasy reach. Rota-Reel grounding reelsfeature a galvanized steel mountingbase for installation in any position anda sturdy steel housing with a weatherresistant finish to protect the reel fromcorrosion.

D E S C R I P T I O N

S P E C I F I C A T I O N SCABLE LENGTH: Model 700-50R (50')

Model 200-20R (20')

CABLE CONSTRUCTION: 3/32" dia.,7 x 7 galvanized carbon steel meetingMIL spec W-83420

TERMINATION: 100 amp alligator-typesolid copper jaw grip (Mueller 21C,4" length, 1-1/16" jaw opening—U.S. Govt.Type PCL-1, Federal Spec W-C-440B)

NOTE: Grounding and bonding during fuel handlingoperations can, at best, only prevent external electricaldischarge in the presence of fuel vapor. It does not removebulk charges from the fuel and cannot prevent internalexplosions. To minimize the risk, the conductivity of the fuelshould be increased.

LIFE CYCLE: Tested to 5,000 cycles

HOUSING: Steel with red enamel

WEIGHT: Model 700-50R—5.5 lb.;Model 200-20R—3.5 lb.

D I M E N S I O N SIN

(MM)A C

B

D

E

G

F

MODEL700-50RHAS 4

MOUNTINGHOLESØ .41

(10.32)

MODEL 200-20R HAS 2 MOUNTING SLOTS.27 X .38 (6.75 X 9.53)

DIMENSIONS

MODEL A B C D E F G

700-50R7.84 7.81 2.13 7.88 8.75 2.38 3.97

(199.2) (198.4) (53.3) (200) (222.3) (60.3) (100.8)

200-20R5.78 6.03 1.88 5.88 6.75 2 3.13

(146.8) (153.2) (47.6) (149.2) (171.5) (50.8) (79.4)

MODEL 700-50R ANDMODEL 200-20R

© 1999, by AMETEK, Inc. All rights reserved.2.5M399L (160038)

U.S. GAUGE • HUNTER SPRING PRODUCTS900 CLYMER AVENUE • SELLERSVILLE, PENNSYLVANIA 18960 U.S.A.

TEL: (215) 257-6531 • FAX: (215) 257-3058 • www.ametekusg.com

Hunter Spring Static Bonding Reelsprovide the automatic retraction andcompact storage of 50, 75 and 100 footcable and clamp assemblies. Designedto function under extreme environmen-tal conditions, the 50 and 75 foot cablelength models meet USAF SpecificationMIL-R-83232B.

By utilizing a SPIR’ATOR® spring,rather than a power spring, for exten-sion and retraction, Hunter SpringStatic Bonding Reels are smaller andlighter than the original military specifi-cations. This reduced size and weightmake Hunter Spring reels easier to lo-cate and mount on vehicles. A patentedlatching mechanism holds the cable atany desired length. A slight pull on the

cable releases the mechanism causingretraction. Retraction need not beattended. The retraction speed isautomatically governed by a specialbrake assembly designed to limit theretraction speed from two to seven feetper second. Steel components and acantilever-type frame, which supportthe reel assembly, are designed tofunction under the most adverse condi-tions. Baked-on MIL spec red finish andgasketed drum construction protectoperating parts from corrosion. Bearingsurfaces are permanently lubricated.

CABLE LENGTH:Model ML-2930-46 (50')Model ML-2930-9 (75')Model ML-3416-7 (100')

CABLE DIAMETER:50' and 75': 3/32" dia., 7 x 7 stainless steel,nylon jacketed to 1/8" total diameter*

100': Same except galvanized steel*

CABLE CLAMP:50' and 75': 100 amp alligator-type solidcopper jaw grip (Mueller 21C, 4" length, 1-1/16" jaw opening—U.S. Govt. TypePCL-1, Federal Spec W-C-440B)*

100': 100 amp alligator-typed lead platedsteel jaw grip (Mueller 11A, 6" length, 1-5/8"jaw opening)*

ELECTRICAL RESISTANCE: 10 ohmsmaximum between clamp and mountingbase on all 3 models

LIFE CYCLE: Tested to 5,000 cycles

CABLE RETRACTION SPEED:2-7 feet/second

FINISH: Conforms to MIL-Std 808, redpaint, Film Designation DG

PACKAGING: Conforms to MIL-P 726, UnitPack-Level A, Shipping Pack-Level B

OPERATING TEMPERATURE RANGE:-65o F TO +125o F

STORAGE TEMPERATURE RANGE:-80o F TO +160o F

D I M E N S I O N SIN

(MM)

Static Bonding ReelsFor Heavy-Duty ApplicationsAutomatic RetractionWeather Resistant Finish100 Amp Alligator ClampTermination

F E A T U R E S

D E S C R I P T I O N

MODELS ML-2930-46 &ML-2930-9

MODEL ML-3416-7

7.875(200)

9(228.6)

9.25(235)

.563(14.2)

2(50.8)

3.81(96.8)

.875(22.2)

Ø .500(12.7)

2 MTG. HOLES

9.75(247.7)

Ø .500(12.7)

4 MTG. HOLES

3(76.2)

4.31(109.5)

1.125(28.58

.875(22.2)

9.75(247.7)

S P E C I F I C A T I O N S

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

*Alternate cable lengths including wyes, cable diameters andcable hardware available on special order.