How to Assemble Modular Floats: Connectors, Installation and Future Expansion

HISEA DOCK / ILLUSTRATED TECHNICAL GUIDE

Start at the connection lugs. Check the module interfaces, matching hardware and site layout together, with future alterations in mind.

Check the lugs before fitting the pins

The round pin heads are easy to see from the deck. The connection begins underneath them, where the lugs meet. Their numbering and stacking arrangement must follow the instructions for that model. Hisea’s public installation guide starts with arranging the numbered modules.^[1]

The layout needs connection details as well as dimensions. Identify module types, orientation, lug combinations and edge joints. Mark corners, branches, shore connections and accessory positions before assembly.

Similar colours or deck patterns do not establish compatibility. When combining low-profile floats, standard units or different product versions, check interface heights and the deck transition under operating conditions.

Match each connector to its joint

Hisea lists short pins for joining floats, side screws for edge fixing, and washers of different types for specific lug combinations. Select them from the joint detail rather than using washers as improvised gap fillers.^[1][2]

Connecting pin

Match the pin type, engagement length and locking method to the module. Check seating and locking after fitting.

Matching screw assembly

Different joints may require different screw assemblies. List the type, quantity and installation position in the order.

Washers

The lug combination and supplied joint instructions determine whether a washer is required and which type to use.

Assembly spanner

Hisea’s catalogue lists a spanner for locking and unlocking connecting pins. Follow the method for the supplied model.^[2]

Double-layer arrangements have their own hardware. The catalogue lists long pins and long bolts for these connections. Their use does not automatically double the platform’s allowable working load; review the proposed arrangement for the project.^[2]

Keep the assembly sequence clear

Hisea’s public guide outlines numbered positioning, short-pin fitting, spanner locking and short-screw reinforcement.^[1] A project installation also needs preparation and checks before opening:

1. Check the delivery and inspect the lugs.

   Compare modules, fittings and tools with the layout and parts schedule. Set aside components with cracks, deformation or transport damage for assessment.

2. Set the orientation and trial-fit representative joints.

   Use a suitable, safe work area. Check numbering, lug stacking and alignment. Investigate a mismatch before proceeding; do not force the fit with hammering or enlarged holes.

3. Complete the specified connections.

   Fit the correct pins and use the matching tool. Complete edge joints with the specified screws and washers. Any locking direction, travel or torque requirement must come from the instructions for that model.

4. Inspect the connections and complete the site installation.

   Check pin seating and edge fittings, then complete restraints, shore access and railings. Provide temporary restraint and worker protection as required by the site method, particularly when moving assembled sections.

5. Inspect, accept and record the completed arrangement.

   Review joints, local changes in deck level, accessories and positioning components. Open the installation after the required acceptance checks. Retain the final layout, fitting types, inspection record and maintenance instructions.

Before extending, review what the existing platform can accommodate

An extra row may change circulation, equipment positions and the area exposed to wind and current. A compatible interface answers one question. Whether the enlarged platform suits its new use requires a wider review.

Hisea’s maintenance guidance provides checks for pins, floats, shore connections and anchoring components. Use these when assessing the existing installation, then review the proposed extension and its intended use.^[3][4]

Questions to resolve before ordering

Can the original pins be reused?

Check type and condition first. Cracks, deformation, significant wear or abnormal locking require attention before reuse. Also confirm that retained fittings suit the joints in the proposed extension.

What should be kept for a future extension?

Record the intended direction and use of any later phase. Retain module and fitting types, connection drawings and supply records so that interfaces and replacement parts can be checked accurately.

Is the platform area enough for a quotation?

Include its use, dimensions, water and shore photographs, water-level changes and installation conditions. For an extension, add existing module details, close-ups of the lugs and information about new equipment.