Apex Series
Apex-12 MAX
SK99 HMPE for permanent moorings where creep is the enemy.
HMPE12-Strand Single Braid
- Max MBS
- 1,020,000 lb
- Diameters
- 3/4" – 3"
Apex Series
Apex-12
Size-for-size stronger than steel wire rope, and it floats.
12-Strand Single BraidHMPE Splice 100%
Schematic — 12 strands, braided in pairs
A 12-strand single braid of SK78 HMPE. Torque-free, hand-spliceable in the field, and the highest strength-to-weight in the catalogue: the rope that replaces wire.
When to specify this
Choose Apex-12 when handling weight, deck safety or snap-back energy governs. Choose Meridian-DB for a rough coaming or a self-tailing jaw.
Engineering notes
- Torque-free and hockle-free. Will not build twist under repeated loading
- Field-spliceable with a fid. Full strength, no tools or resin
- Floats. Under a tenth the recoil energy of a steel equivalent
- Heat-set and pre-stretched: published elongation is what you get
At a glance
- Max break strength
- 268,000 lb
- Diameter range
- 1/4" – 1-1/2"
- Construction
- 12-Strand Single Braid
- Fibre
- HMPE
- Elongation @ 30% MBS
- 1.3%
- Splice efficiency
- 100%
- Torque balanced
- Yes
Standard colours
Steel Grey · Cobalt · Signal Red · Black
Certification
- ISO 9001 batch traceability
- Break tested to CI 1500
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.
| Diameter | Min. break strength (lb) | Weight (lb/100 ft) |
|---|---|---|
| 1/4" | 8,600 | 1.3 |
| 5/16" | 13,200 | 2.1 |
| 3/8" | 19,600 | 3 |
| 7/16" | 26,400 | 4.1 |
| 1/2" | 34,000 | 5.4 |
| 9/16" | 42,500 | 6.8 |
| 5/8" | 52,000 | 8.4 |
| 3/4" | 74,000 | 12 |
| 7/8" | 99,000 | 16.3 |
| 1" | 125,000 | 21 |
| 1-1/4" | 190,000 | 32.8 |
| 1-1/2" | 268,000 | 47.2 |
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 — 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
- 1.3 %
- Load
- 30 % MBS
- Stretch / 100 ft
- 15.6 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.
| Load (% of MBS) | Elongation (%) | Source |
|---|---|---|
| 0 | 0 | Origin |
| 10 | 0.5 | Measured |
| 20 | 0.9 | Measured |
| 30 | 1.3 | 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.
| Rank | Product | Strength-to-weight |
|---|---|---|
| 1 | Apex-12 (this rope) | 6,615 |
| 2 | Apex-12 MAX | 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 |
Also specified for these applications
Vector Series
Vector-PC
Lowest elongation we make. A rope that behaves like a strut.
HMPEParallel Core
- Max MBS
- 112,000 lb
- Diameters
- 1/4" – 1"
Meridian Series
Meridian-DB
The all-polyester double braid that outlives the hardware.
PolyesterDouble Braid
- Max MBS
- 50,000 lb
- Diameters
- 1/4" – 1-1/4"