Apex Series

Apex-12 MAX

Name: Apex-12 MAX
Brand: Ropebraiders

SK99 HMPE for permanent moorings where creep is the enemy.

12-Strand Single BraidHMPE Splice 100%

Schematic — 12 strands, braided in pairs

Apex-12 geometry braided from SK99 creep-resistant HMPE, coated with our Tenax abrasion finish. Built for installations that hold load for years, not hours.

When to specify this

Specify MAX over Apex-12 when the line stays loaded more than a few days, or above 30 °C. Creep rate is why it exists.

Engineering notes

SK99 fibre: roughly an order of magnitude less creep than SK78
Tenax polyurethane finish for bollard and fairlead abrasion
Individually serialised with a batch certificate and retained test sample
Length-marked every metre for inspection and retirement tracking

At a glance

Max break strength: 1,020,000 lb
Diameter range: 3/4" – 3"
Construction: 12-Strand Single Braid
Fibre: HMPE
Elongation @ 30% MBS: 1.1%
Splice efficiency: 100%
Torque balanced: Yes

Standard colours

Steel Grey · Black

Certification

ISO 9001 batch traceability
OCIMF MEG4 aligned documentation

Request a quote Calculate working load

Full spec sheet and batch test certificate supplied with every order, and on request beforehand.

Typical applications

Specifications

Minimum break strength is the value we publish and test to — not an average, and not a working load. Divide by your design factor before putting a number on a drawing.

Apex-12 MAX specifications by nominal diameter
Diameter	Min. break strength (lb)	Weight (lb/100 ft)	Working load @ 5:1
3/4"	78,000	12.4	15,600 lb
1"	132,000	21.6	26,400 lb
1-1/4"	200,000	33.6	40,000 lb
1-1/2"	282,000	48.4	56,400 lb
1-3/4"	372,000	65.5	74,400 lb
2"	480,000	85	96,000 lb
2-1/2"	730,000	132	146,000 lb
3"	1,020,000	190	204,000 lb

Working load shown at a 5:1 design factor for illustration only. Use the load calculator to apply the design factor, sling angle and termination efficiency your application actually requires.

Weights are nominal and vary ±5% with finish and coating. Elongation measured on new rope after bedding-in; expect higher values on the first cycle. Splice efficiency assumes a correctly made splice with the specified bury length.

Load against elongation

Measured to 30% of MBS. Beyond that the curve is extrapolated from the fibre, and drawn dashed to say so.

Load vs. elongation

Apex-12 MAX — stretch under load

Elongation as a percentage of original length, plotted against load as a percentage of minimum break strength. Drag, or focus the plot and use the arrow keys, to read any point off the curve.

Elongation: 1.1 %
Load: 30 % MBS
Stretch / 100 ft: 13.2 in
Source: Measured

Solid — measured at 10, 20 and 30% of minimum break strength, interpolated with a monotone cubic so the fit cannot overshoot.
Dashed — extrapolated to 3.5% using published HMPE elongation at break. Inferred, not measured. Do not design to it.
Shaded — working load at a 5:1 design factor, i.e. up to 20% of MBS.

Apex-12 MAX load against elongation. Load is a percentage of minimum break strength; elongation is a percentage of original length.
Load (% of MBS)	Elongation (%)	Source
0	0	Origin
10	0.4	Measured
20	0.8	Measured
30	1.1	Measured
100 (break)	3.5	Extrapolated from HMPE elongation at break

Strength to weight

Break strength per pound of rope, across the catalogue. This is the number that decides what a two-person crew can rig.

Strength-to-weight

12 ropes, ranked highest first

STRENGTH-TO-WEIGHT — LB PER LB/100 FT

Break strength divided by weight per 100 ft, best size in each range. Numerically this is breaking length in hundreds of feet — the length of rope whose own weight equals its break strength.

Strength-to-weight by product, highest first, in lb per lb/100 ft.
Rank	Product	Strength-to-weight
1	Apex-12	6,615
2	Apex-12 MAX (this rope)	6,290
3	Vector-PC	3,793
4	Thermion-AR	3,136
5	Datum-LCP	3,125
6	Meridian Hybrid	2,663
7	Ascent NFPA-G	1,322
8	Meridian-DB	1,143
9	Canopy-24	1,063
10	Harbour-3	1,040
11	Surge-8	1,000
12	Drift-PP	809