Description of the CCW Boat Seat Suspension – CC Series – Seating Height 340-380 mm – 4S Scandinavian Seat Suspension Systems
The CCW marine seat suspension is the full-featured model of the CC series from Scandinavian manufacturer 4S – Scandinavian Seat Suspension Systems, engineered for planing powerboats up to approximately 30 feet operating in rough sea conditions. The suffix W (for Swivel & Slide) designates the complete version, integrating both a fore/aft longitudinal sliding system (Slide) and a 360° lockable swivel in 8 positions — providing maximum freedom of positioning and orientation for the helmsman or crew aboard any pleasure craft or professional vessel.
The well-documented risks associated with wave slamming on the hull of fast planing boats — back and neck pain, premature fatigue and loss of concentration at the helm — demand a precise and proven mechanical response. The CCW delivers exactly that: its adjustable pre-load damper absorbs vertical shock forces before they reach the spine, keeping the pilot relaxed, focused and fully operational for longer, even in challenging sea states. As 4S puts it, a quality seat suspension is first and foremost an insurance policy — and an investment that lastingly increases the value and appeal of the vessel.
The damper pre-load is quickly adjustable using the C-spanner provided — attached to the deck plate — to match the pilot’s body weight from 60 to 130 kg (125 to 285 lb). The longitudinal sliding system provides a travel of 120 mm (5″) fore and aft, allowing the seat position to be tailored to the user’s build or helming preference. The Swivel and Slide control handles reach 250 mm (10″) from the centre-line and can be positioned on either side of the unit, as decided at the time of installation — a practical detail for both port and starboard console configurations aboard any nautical vessel.
Manufactured exclusively from premium marine-grade materials — stainless steel 316/316L for exposed structural elements, 5052H32 and 6061T6 aluminium at 6 to 8 mm thickness for plates and arms, bronze c63000 for articulation components, and PolyOxyMethylene (POM) for sliding elements — the CCW is built to withstand the harsh conditions of the marine environment: salt, moisture, UV exposure and constant vibration aboard any offshore or coastal craft.
The CC series is compatible with RB- (RIB-type Baseplate), SR- (Small Round) and BR- (Big Round) deck plates, offering installation flexibility across a wide range of console and cockpit geometries. A height adjustment of 40 mm (1.75″) is available on the CC series, giving a seating height range of 340 to 380 mm (14 to 16″). The standard finish is satin black powder coat and anodising — alternative finishes (silver grey, satin white) are available subject to minimum order quantities.
All 4S products meet the most demanding requirements of ABYC H-31 standard, type AO — the most stringent American nautical safety certification for seat suspensions, covering any type of boat, any seating position on board, and any navigation speed.
Specifications
- Reference: CCW
- Series: CC (Swivel + Slide)
- Manufacturer: 4S – Scandinavian Seat Suspension Systems
- Seating height: 340 to 380 mm / 14 to 16″
- Height adjustment: 40 mm / 1.75″
- Swivel: 360° in 8 lockable positions
- Slide: fore/aft 120 mm / 5″
- Damper pre-load: adjustable 60 to 130 kg / 125 to 285 lb
- Pre-load adjustment: C-spanner (supplied, attached to deck plate)
- Handle reach: 250 mm / 10″ from centre-line
- Handle positioning: left or right side, decided at installation
- Compatible deck plates: RB-, SR-, BR-
- Materials: Stainless steel 316/316L, Aluminium 5052H32 + 6061T6 (6-8 mm), Bronze c63000, PolyOxyMethylene (POM)
- Standard finish: Satin black (powder coat + anodising)
- Optional finishes: Silver grey, Satin white (subject to MOQ)
- Certification: ABYC H-31 type AO (any boat / any position / any speed)
- Alternative models in the CC series: CCS (Slide only), CCF (Fixed)
Installation / Maintenance
Installation:
- Select the deck plate suited to your console or cockpit geometry from the available options: RB (RIB-type Baseplate), SR (Small Round) or BR (Big Round).
- The seat mounting surface must be absolutely flat — any unevenness will compromise the integrity of the sliding mechanism and may create a safety hazard.
- Once the seat has been installed onto the suspension, always ensure the slide stop-screw is fully tightened. Failure to do so risks damage to the unit and/or a serious accident on board.
- The Swivel and Slide handles can be repositioned to the opposite side in two simple steps: pull out the handle (A), then turn 180° (B). No tools required.
- Adjust the damper pre-load using the C-spanner provided, to match the pilot’s body weight within the 60 to 130 kg / 125 to 285 lb range. Correct pre-load setting is essential for effective shock absorption at sea.
- Where standard screws cannot achieve a secure grip in the deck or console material, use the optional threaded deck inserts (M6: 12 mm / M8: 28 mm) available as accessories.
- If the seat’s mounting area is not perfectly flat, use optional aluminium or PVC spacers to achieve a level seating surface before installation.
Maintenance:
- Periodically inspect all stainless steel, aluminium and bronze components for signs of corrosion, wear or mechanical damage. Clean with fresh water after each offshore passage or exposure to salt spray.
- Lightly lubricate the sliding rail and swivel pivot with a marine-grade silicone or PTFE lubricant to maintain smooth, precise operation of both the Slide and Swivel functions.
- Check the damper pre-load setting regularly, especially if the unit changes user or after any significant impact. Re-adjust with the C-spanner as necessary.
- Inspect the slide stop-screw at the start of each season and after any heavy-weather passage. Ensure it remains fully engaged to prevent accidental seat displacement.
- No specific periodic replacement is required for the POM sliding elements under normal use; replace if abnormal play or noise develops in the slide mechanism.
Our review
✔️ Pros:
- Full Swivel + Slide combination in a single unit — maximum ergonomic flexibility for helmsman positioning, particularly valuable on open console sportboats, RIBs and centre-console craft where the pilot’s position varies with sea conditions.
- Adjustable pre-load covering 60 to 130 kg with a single C-spanner — quick to set dockside and compatible with a wide range of crew weights without requiring tool changes or part swaps.
- Exclusively marine-grade materials throughout: 316/316L stainless steel, thick-section aluminium alloy and bronze — genuinely engineered for long-term offshore durability, not cosmetic marine styling.
- 360° swivel with 8 lock positions — precise, secure orientation control that holds firmly under load and vibration, with no risk of unintended rotation underway.
- ABYC H-31 type AO certification — the highest US boating safety standard for seat suspensions, covering any boat type, position and speed; a meaningful guarantee for both private owners and professional operators.
- Handles repositionable to either side at installation — genuine flexibility for port or starboard console configurations without requiring separate left/right hand variants.
- Compatible with RB-, SR- and BR- deck plates — broad installation compatibility across diverse vessel types and console geometries.
❌ Cons:
- The CCW is the tallest configuration in the CC series — at up to 380 mm seating height, verify that your console layout provides adequate clearance beneath the seat base before ordering; low-profile consoles may require the CCS (Slide only) or CCF (Fixed) variant instead.
- Pre-load adjustment requires the C-spanner supplied — while this is provided with the unit, rapid weight adjustment underway is less immediate than on handwheel-equipped series such as the TH or TM.
- Maximum supported body weight is 130 kg / 285 lb — users above this threshold should refer to the BG series, which is specifically engineered for weights of 110 to 170 kg / 240 to 380 lb.
- Alternative finish options (silver grey, satin white) are subject to minimum order quantities — individual retail orders are supplied in satin black only.
Conclusion
The CCW is an outstanding choice for powerboat owners and nautical professionals who want a complete, high-performance seat suspension combining full swivel freedom and longitudinal adjustment in a compact, thoroughly marine-grade package. Its 340 to 380 mm seating height, adjustable 60-130 kg pre-load, 360° swivel in 8 lock positions and 120 mm fore/aft slide make it equally at home on a fast centre-console, a RIB patrol craft or a day-cruiser helm station. Before ordering, confirm that the maximum seating height of 380 mm is compatible with your console layout and seat geometry, that your pilot’s weight falls within the 60 to 130 kg operating range, and that one of the three available deck plate formats — RB, SR or BR — suits your installation. If your crew weight exceeds 130 kg, consider the BG series; if a lower profile is required, the CCS (Slide only) or CCF (Fixed) variants offer reduced stack heights. For those whose installation profile matches these specifications, the CCW represents a genuine long-term investment in on-board comfort, safety and vessel value — backed by the most demanding nautical safety certification available.
Good to Know
- The suffix W means the unit includes both Swivel and Slide. If you only need fore/aft adjustment without rotation, choose the CCS (Slide only, slightly lower height). For a fixed pedestal without slide, choose the CCF.
- The seating height range of 340-380 mm (14-16″) refers to the distance from deck plate to the top of the seat suspension unit — add the thickness of your seat cushion to calculate total seated height above deck level.
- Always install the slide stop-screw fully after attaching the seat. This is a critical safety step — an unsecured slide can cause seat displacement and injury underway.
- The C-spanner for pre-load adjustment is supplied with the unit and is designed to remain attached to the deck plate for easy access at any time. Never lose or stow it separately from the unit.
- Swivel and Slide handles can be moved to the opposite side in two simple steps (pull out, rotate 180°) — no tools required, and this can be done at any time after installation.
- Standard finish is satin black (powder coat + anodised parts). Silver grey and satin white are available at MOQ — contact your dealer for lead times and minimum quantities.
- For installations where standard screws cannot grip the deck or console material securely, threaded deck inserts (M6: 12 mm / M8: 28 mm) are available as accessories.
- For crew weights above 130 kg / 285 lb, refer to the 4S BG series, specifically engineered for 110 to 170 kg / 240 to 380 lb users. The BG series is available in Slide and Fixed configurations only (no Swivel).
- All 4S products meet ABYC H-31 type AO — the highest US boating safety standard for seat suspensions, valid for any boat, any position and any speed.
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