MaxSpan™ 300 · Over-roof horizontal lifelineA continuous lifeline across the roof.
MaxSpan 300 is a permanent horizontal lifeline riveted to trapezoidal metal roofs. Workers clip a trolley onto 8 mm SS316 wire rope and walk the full run, round corners and through intermediate brackets, without ever unclipping.
For people who work on metal roofs
Anywhere maintenance, cleaning or inspection crews walk a trapezoidal sheet roof.
Warehouses and factories
Roof-mounted HVAC, skylights, gutters and solar arrays.
Logistics and cold stores
Long, low-pitch roofs where the run is long and the edge is far.
Utility and plant buildings
Regular inspection walks that need a permanent, always-ready anchorage.
Solar installations
Cleaning and maintenance crews moving along rows of panels.
Anchor, absorb, tension, travel
Riveted posts sit on the sheet peaks so water drains freely. The shock absorber and tensioner sit at one end; intermediate brackets split the run into spans of up to 12 m; a corner piece takes the line round bends.
- 01End anchor postMS300-01E (SS316 version MS300-01A)
- 02Shock absorberMS300-03
- 03Tensioner with cable extremityMS300-04
- 04Intermediate post and bracketMS300-01I + MS300F-05
- 058 mm SS316 wire ropeJSWR-08mm 7x19 SS316
- 06Detachable trolleyMS300-6, to the worker's lanyard or SRL
- 07Cable extremityMS300-06
- 08End anchor postMS300-01E
Every part, and what it does
Eleven stainless-steel components. The four riveted roof posts share one design and are grouped here; order them by role.
Roof anchor posts
Riveted posts at each end (01E), along the run (01I) and at corners (01C); 01A is the SS316 extremity post.
Shock absorber
Spring-type energy absorber that cuts the load reaching the anchors and roof in a fall.
Tensioner
Swageless tensioner: sets the line length and tension, and joins the cable to the shock absorber.
Intermediate bracket
Holds the 8 mm rope along the run, splitting it into shorter spans to cut sag. The trolley passes straight through.
8 mm SS316 wire rope
The lifeline itself: flexible 7×19 stainless rope for smooth trolley travel.
Corner piece
Redirects the line round a corner or bend in the roof layout without stopping the user.
Detachable trolley
The user's connection point. Rolls the full length of the line, through intermediate brackets, without unclipping.
Cable extremity
Swageless termination at the far end of the 8 mm rope. No swaging tools on site.
Components at a glance
| Component | What it does | Strength | Weight | |
|---|---|---|---|---|
| Roof anchor posts MS300-01E · 01I · 01C · 01A | Riveted posts at each end (01E), along the run (01I) and at corners (01C); 01A is the SS316 extremity post. | 15 kN | 1.9 kg | Specs |
| Shock absorber MS300-03 | Spring-type energy absorber that cuts the load reaching the anchors and roof in a fall. | 25 kN | 1.55 kg | Specs |
| Tensioner MS300-04 | Swageless tensioner: sets the line length and tension, and joins the cable to the shock absorber. | 25 kN | 850 g | Specs |
| Intermediate bracket MS300F-05 | Holds the 8 mm rope along the run, splitting it into shorter spans to cut sag. The trolley passes straight through. | 15 kN (system) | 200 g | Specs |
| 8 mm SS316 wire rope JSWR-08mm 7x19 SS316 | The lifeline itself: flexible 7×19 stainless rope for smooth trolley travel. | 35 kN | 0.25 kg/m | Specs |
| Corner piece MS300-C | Redirects the line round a corner or bend in the roof layout without stopping the user. | 15 kN | 500 g | Specs |
| Detachable trolley MS300-6 | The user's connection point. Rolls the full length of the line, through intermediate brackets, without unclipping. | 25 kN (3 min) | 280 g | Specs |
| Cable extremity MS300-06 | Swageless termination at the far end of the 8 mm rope. No swaging tools on site. | 25 kN | 500 g | Specs |
All values from the Jarsh FLS OR technical data sheet (MaxSpan 300), V0.2 · 11.2025.
Component specifications
Riveted Roof Anchor Posts, ORMS300-01E · 01I · 01C · 01A
Specification
- Variants
- MS300-01E end · MS300-01I intermediate · MS300-01C corner · MS300-01A extremity, SS316
- Roof
- Trapezoidal roof sheets, fixed at the sheet peak
- Compatible pitch
- 230 mm to 290 mm
- Material
- Stainless steel
- Finish
- Body ED coated; swivel anchor eye electropolished
- Weight
- 1.9 kg each
- Minimum breaking strength
- 15 kN
- Fixing
- Rivets, supplied
Installation and inspection
- Install only at roof-sheet peaks with the supplied rivets
- Align the post vertically before tightening
- Check the swivel eye rotates freely after installation
- Inspect for corrosion, loose rivets or deformation
Standard (per TDS)
EN 795:2012 Type A and Type C
Shock Absorber SS316MS300-03
Specification
- Type
- Spring-type energy absorption, D-shackle at both ends
- Material
- Stainless steel
- Finish
- Electropolished / E-coated (transparent)
- Weight
- 1.55 kg
- Minimum breaking strength
- 25 kN
- Suits
- Trapezoidal, standing-seam and over-roof lifelines
Installation and inspection
- Connect between the wire rope and the anchor / tensioner
- Tighten and lock both D-shackles
- Inspect before each use for deformation, corrosion or loose parts
- Replace immediately if deformed after a fall
Standard (per TDS)
EN 795:2012 Type C · CEN/TS 16415:2013
Tensioner with Cable Extremity SS316MS300-04
Specification
- Type
- Swageless, threaded tension adjustment
- Length
- 440.5 mm contracted to 540.5 mm extended
- Material
- Stainless steel
- Finish
- Polished stainless steel
- Weight
- 850 g
- Minimum breaking strength
- 25 kN
Installation and inspection
- Install between the cable and the shock absorber
- Tighten progressively to the recommended tension
- Engage lock nuts / tension retainers
- Do not over-tighten; inspect threads periodically
Standard (per TDS)
EN 795:2012 Type C · CEN/TS 16415:2013
Intermediate BracketMS300F-05
Specification
- Holds
- 8 mm wire rope
- Spacing
- Up to 12 m maximum (over-roof trapezoidal, standing seam, and overhead)
- Design
- Fixed angle, non-adjustable; stainless-steel fasteners
- Material
- Stainless steel
- Finish
- CED coated / electropolished
- Weight
- 200 g
- System strength
- 15 kN
Installation and inspection
- Install at intervals of no more than 12 m
- Align with the wire rope path
- Check the trolley passes through smoothly
- Inspect for corrosion, wear or misalignment
Standard (per TDS)
—
JSWR-08mm 7×19 SS316 Wire RopeJSWR-08mm 7x19 SS316
Specification
- Nominal diameter
- 8 mm
- Construction
- 7 × 19 (strands 12 / 6 / 1), steel core
- Material
- Stainless steel (SS316)
- Weight
- 0.25 kg per metre
- Minimum breaking strength
- 35 kN
Installation and inspection
- Use only with certified connectors, tensioners and shock absorbers
- Avoid sharp bends or kinks when installing
- Inspect for fraying, corrosion or strand separation
- Replace after any high-impact load
Standard (per TDS)
IS 2266:2002
Corner PieceMS300-C
Specification
- Mounting
- Corner / bend of the layout, on trapezoidal roof sheets (peak areas)
- Layouts
- Energy-absorbing and non-energy-absorbing lifelines
- Material
- Stainless steel
- Finish
- Electropolished / E-coated
- Weight
- 500 g
- Minimum breaking strength
- 15 kN
Installation and inspection
- Install at the roof bend along the lifeline path
- Align with the cable direction before fixing
- Check alignment and tension of adjacent components afterwards
Standard (per TDS)
EN 795:2012 Type C
Detachable Trolley (Multi-Span)MS300-6
Specification
- Type
- Openable carriage with spring-loaded safety pin
- Rope
- 8 mm wire rope lifelines
- Connects
- Lanyard or self-retracting fall arrester
- Material
- Stainless steel
- Finish
- Polished
- Weight
- 280 g
- Strength
- Withstands 25 kN for 3 minutes without deformation
Installation and inspection
- Open the carriage and place it over the rope
- Make sure the spring-loaded pin fully engages
- Check smooth travel before use
- Inspect before each use for wear, corrosion or pin malfunction
Standard (per TDS)
EN 795:2012 Type C
Cable Extremity OR, SS316MS300-06
Specification
- Type
- Swageless mechanical grip, 8 mm rope
- Length
- 125.5 mm
- Material
- Stainless steel
- Finish
- Electropolished
- Weight
- 500 g
- Minimum breaking strength
- 25 kN
Installation and inspection
- Deburr the rope end
- Insert the rope as per the manual and tighten the locking mechanism
- Verify locking before use
- Inspect periodically for wear, corrosion or loosening
Standard (per TDS)
EN 795:2012 Type C · CEN/TS 16415:2013
All values from the Jarsh FLS OR technical data sheet (MaxSpan 300), V0.2 · 11.2025.
Specified to recognised standards
EN 795:2012
Anchor devices. Type A for structural anchors such as the roof posts and OH end plate; Type C for horizontal flexible anchor lines.
CEN/TS 16415:2013
Anchor devices for use by more than one person at a time. Listed for the shock absorber, tensioner, cable extremity and OH end plate.
IS 2266:2002
Steel wire ropes for general engineering purposes, listed for the 8 mm SS316 lifeline rope.
Make your MaxSpan™ 300 tell you when it is used.
A fixed line is passive: nobody knows it arrested a fall until someone looks. LineAlert fits inline beside the shock absorber, measures line tension around the clock, and sends a fall alert to your team's phones within a minute, over LTE, powered by its own solar panel.
- Fall alert in ≤ 1 minute, via the LineAlert app
- Slack or wear alerts before the line goes out of tune
- Retrofits to existing lines: no new posts, no cutting, no shutdown
- Every site on the JarshConnect dashboard and the Jarsh LineAlert app
From site survey to a monitored line
Share your site
Roof type and pitch, ladder heights and rung sizes, or the structure an overhead line will hang from. Drawings and photos help.
Layout and bill of materials
We recommend the system, anchor positions, spans and every component, so you know exactly what is going in.
Supply and installation support
Components ship with their instructions. Talk to us about installation for your site.
Inspect and monitor
Inspect to each component's instructions, and add LineAlert so the line reports falls and slack on its own.
Other Fixed Line Systems
VertiGuard™ 400
Vertical lifeline for fixed ladders with a self-locking rope grab and step-off extension.
SafeXtra™ 500
Overhead lifeline on steel or concrete structures, for work below the line.
Common questions
Can't find what you need? Call +91 8340 84 84 84 or write to info@jarshsafety.com.
What roofs does MaxSpan 300 fit?
How far apart are the intermediate brackets?
Does the worker have to unclip at brackets or corners?
What does the shock absorber do?
Do you install the system as well as supply it?
How often should a fixed line be inspected?
Can LineAlert be added to this system later?
Can I get data sheets and drawings?
Put a permanent lifeline on your roof.
Send us your roof, ladder or structure details. We'll recommend the layout and components, and quote.