Specifications

Marina Maxi is far technologically superior, it surpasses the strength and other properties of normal polypropylene rope.

Marina Maxi is far technologically superior, it surpasses the strength and other properties of normal polypropylene rope. With very high Strength/Weight ratio, it allows substantial size reduction, ease in handling and provides overall economy. Marina Maxi rope retains superior breaking Strength originated from technically reinforced composition of High Grade Synthetic Compound with Polyester and Polypropylene. In addition to the other superior properties, this ideal composition and construction creates extremely low elongation that offers stability during usage.

The Company
Axiom Cordages LTD is the Company in India that supply Ropes under OCIMF Guidelines.

Cyclical loading test
The test equipment is designed to be used for cyclic loading tests of ropes made of synthetic materials which will be used in applications exposed to cyclic loading in service. The procedure of prototype rope testing for determination of the TCLL value is specified in OCIMF (OIL COMPANIES INTERNATIONAL MARINE FORUM) guidelines.

 

Test Procedure
The cyclic loading test is performed at defined levels of loading in wet conditions. The rope sample is loaded with the prescribed number of cycles at individual levels of loading at a prescribed rate until the sample breaks or 2000 cycles at an 80% level of loading is achieved. The achieved number of cycles is used to calculate the TCLL level of loading at which the rope would break at 1000 cycles. The test course is continuously recorded by means of a computer and the final test report is based on this computerized record.

 

Dia	Wt. Per 220 mtrs.	Wt. Per 220 mtrs.	Wt. Per 200 mtrs.	Wt. Per 200 mtrs.	Breaking strength	Breaking strength	Breaking strength
(mm)	in Kgs.	in Lbs.	in Kgs.	in Lbs.	in Kgf.	in Lbs.	in KN.
40	174	383	158	347.6	31100	68420	305
44	213	468.6	194	426.8	37100	81620	363
48	252	554	229	503.8	43600	95920	427
52	295	649	268	589.6	50600	111320	496
56	343	754.6	312	686.4	58100	127820	569
60	395	869	359	790	66100	145420	648
64	448	985.6	407	895.4	74600	164120	731
68	505	1111	459	1010	83700	184140	820
72	566	1245.2	515	1133	93300	205260	914
76	633	1392.6	575	1265	104150	229130	1021
80	701	1542.2	637	1401.4	115000	253000	1127
84	775	1705	705	1551	126500	278300	1240
88	850	1870	773	1700.6	138000	303600	1353
96	1007	2215.4	916	2015.2	163000	358600	1598
100	1098	2415.6	998	2195.6	176550	388410	1730
*104	-	-	1080	2576.2	190100	418220	1864

 

 

Properties

• Specific Gravity: 0.99
• Melting Point: 185oC
• Breaking Load Reduction of Wet Rope: 0%
• Bending Ratio: 9:1
• Elongation at Breaking Point: 15%
• Water Absorption: 0%

Distinctive Advantages

• Float On Water
• High Breaking Strength
• High Abrasion Resistence
• High Shock Absorption
• No Loss Of Strength When Wet
• Low Weight-Easy Handling
• Very Low Snap-Back Effect
• Low Elongation

Application

• Mooring Lines For 0.1 Tanker
• Towing Lines
• Anchoring Lines
• SPM Hawsers
• Messenger Lines
• Offshore Applications

 

Elongation Test

Total stretch represents the entire length change in a new rope when placed under a given stress (load) and includes the non-recoverable, recoverable overtime and immediately recoverable portions of extension. One of the variables affecting percentages of elongation is intermittent loading vs. sustained loading; plotted graphically, the curves are somewhat different. Two marks are made on Marina Maxi Rope 30 inches apart, then tightly knot up a piece of string or twine made of same material through the strands at these marks. The string measure 34-1/2 inches between knots. When the rope is put under load of 20% of its breaking strength it is elongated less than 15% between the two knots 30" apart when relaxed will now be 34-1/2" apart (30"+0.15x30 = 34-1/2") and the string is taut.

Conclusion
If the string would have snapped out then it is to be believed that the rope has been loaded more than the breaking strength as well as if the distance have been more than 34-1/2" then the elongation is more than 15% which is not the case in our sample.