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Floating Breakwaters 4 metres

4 m Width
1,4 or 1,8 mHeight
15 or 20mLength

The 4-metre-wide QMF (Floating Breakwaters) can be manufactured in lengths of 15 or 20 metres and with nominal heights of 1.4 or 1.8 metres.

They are robust pontoons made of steel-reinforced concrete with expanded polystyrene flotation, designed to provide excellent wave attenuation performance.

They stand out for their optimized geometry, structural configuration and connection system, offering an ideal structure for wave attenuation:

Robust
Stable
Resistant
Safe

Their dimensions allow for a reduction in the number of connections and mooring systems required, improving the overall performance of the installation and helping to reduce operating and maintenance costs throughout their service life.

Modular construction with variable dimensions is available.

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information about Floating Breakwaters 4 metres

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Documents

Commitment to Adapted Sailing

Events

From 06/10/2026 to 08/10/2026 Location: Brest, France Sea Tech Week 2026
From 03/11/2026 to 06/11/2026 Location: Paço de Arcos, Portugal Regional Technical Seminar Jointly Organized by IALA-WWA and the Portuguese Lighthouse Authority – Aids to Navigation
From 04/11/2026 to 06/11/2026 Location: Las Palmas, Gran Canaria 2nd Spanish Marinas Congress

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In compliance with Law 7/2004, last updated on 30/05/2023, on information society services and electronic commerce, AHLERS LINDLEY, LDA., informs you that it is the owner of the website: https://www.lindley.pt/. In accordance with the requirements of Article 10 of the afore mentioned Law, it hereby notifies the following details: AHLERS LINDLEY, LDA., reports the following data: NIF PT5000012261, Registered in Conservatória do Registo Comercial de Cascais with nº. 500012261 and registered office at Edifício Mical, Estrada de Manique nº1896, 2645-550 – Alcabideche. The email address for contacting the company is: geral@lindley.pt

The navigation by access or use of the website and all the subdomains and directories included under the same domain, as well as the services or contents that can be obtained through it and all the own domain portals under the ownership of AHLERS LINDLEY, LDA., grants the condition of User, by which they are accepted, when browsing the website of AHLERS LINDLEY, LDA., all the conditions of use that are established without prejudice to the application of the corresponding regulations of obligatory legal compliance as the case may be.

Therefore, if you do not agree with the considerations detailed in this Legal Notice, please do not use the Portal, as any use you make of it or the services and contents included in it will imply the acceptance of the legal terms included in this text.

The website of AHLERS LINDLEY, LDA. provides a wide range of information, services and data. The User assumes responsibility for the correct use of the websites. This responsibility will be extended to: The veracity and legality of the information provided by the user in the registration and contact forms of AHLERS LINDLEY, LDA., to access certain contents or services offered by the web.

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PRIVACY POLICY

In accordance with the provisions of the RGPD-UE-2016/679, Law n.º 58/2019, from 8th august, AHLERS LINDLEY, LDA. informs the users of its websites that we are obliged to keep professional secrecy about the personal data collected by the entity through the registration or contact forms on its pages. This obligation will continue even after the commercial or contractual relationship has ended, and under no circumstances will we be able to make public the personal data of visitors and clients to the website without their consent.

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The data subject shall have the right to withdraw his or her consent at any time. Withdrawal of consent shall not affect the lawfulness of the processing based on consent prior to its withdrawal.

Consent of the child: Article, 6, paragraph, f, of the RGPD-UE-2016/679, that minors under 16, years of age cannot give their consent for an online commerce to collect their personal data, being their legal representatives (parents or guardians) who can do so on their behalf, except when the minor is at least, 16 years of age, which will be lawful consent.

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POLICY OF LINKS AND EXEMPTIONS OF RESPONSIBILITY

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AHLERS LINDLEY, LDA. declares that it has adopted all the necessary measures to avoid any damage that may arise from browsing its web pages. Consequently, AHLERS LINDLEY, LDA. is not responsible, in any case, for the eventual damages that the user may suffer as a result of surfing the Internet.

AHLERS LINDLEY, LDA., is not responsible for damages of any kind caused to the User as a result of failures or disconnections in the telecommunications networks that produce the suspension, cancellation, installation or interruption of the web service during the provision of the same or beforehand.

Access to the website https://www.lindley.pt/ does not imply the obligation of AHLERS LINDLEY, LDA. to control the absence of viruses or any other harmful computer element. It is the responsibility of the User, in any case, to ensure the availability of adequate tools for the detection, disinfection and protection of harmful computer programs.

AHLERS LINDLEY, LDA., is not responsible for any damage caused to the computer equipment, documents and/or files of the Users or third parties during the provision of the service on this Web Portal.

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MODIFICATIONS

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INTELLECTUAL PROPERTY

The intellectual and industrial property rights derived from all the texts, images, as well as the means and forms of presentation and assembly of its pages belong, by themselves or as assignee, to AHLERS LINDLEY, LDA..

Directive-EU-2019/790 of the European Parliament and of the Council of 17 April 2019 on copyright and related rights in the Digital Single Market.

All rights reserved. In compliance with the Intellectual Property Law, the reproduction, distribution, public communication and use of all or part of the contents of its web pages without the explicit consent of AHLERS LINDLEY, LDA. is expressly prohibited.

Likewise, AHLERS LINDLEY, LDA. reserves the right to present the civil or penal actions that it considers appropriate for the improper use of its web pages and contents or for the non-fulfilment of these conditions.

LEGAL ACTIONS, APPLICABLE LEGISLATION AND JURISDICTION

The relationship between the user and AHLERS LINDLEY, LDA. will be governed by current Portuguese regulations and will be competent to decide on any dispute that may arise between the user and AHLERS LINDLEY, LDA., the courts of the city of CASCAIS.

USE OF COOKIES

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EXERCISE OF RIGHTS:

These data will be introduced in an automated file under the responsibility of the web administrator of AHLERS LINDLEY, LDA. with the purpose of being able to facilitate, speed up and fulfil the commitments established between both parties.

Likewise, AHLERS LINDLEY, LDA. informs of the possibility of exercising the rights of access, which allows the web user to know what personal data the administrator of this page has and in such a case will reply within 30 days; rectification, which allows you to correct errors in the personal data, modify those that are inaccurate or incomplete and ensure the accuracy of the information; opposition, whereby you may request and obtain that the processing of your data not be carried out; deletion, whereby inappropriate or excessive data may be deleted; limitation, whereby you may request that the processing of your data be limited when you have exercised your right to rectification of your personal data; and portability, whereby you may obtain a copy of the personal data you have provided on the website in order to be able to transmit them to other services. These rights may be exercised by any means that provides proof of sending and receipt to the address of the administrator of this website or to the e-mail address geral@lindley.pt, providing a photocopy of your ID card or alternative documentation proving your identity.

Updated: 30/05/2025

Cookies Policy

WHY DO WE NEED YOUR EXPLICIT CONSENT TO USE COOKIES?

CONSENT OF THE INTERESTED PARTY: In order to carry out the processing of your personal data that will be treated with privacy and security, your consent is necessary with the acceptance by a "Check or Button" with the "ACCEPT" the user of this web/App, gives its explicit consent to the processing of its data and information provided through cookies on your device.

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A "Check or Button" for “MORE INFORMATION”, which can be accessed in this Cookies Policy.

MINOR’S CONSENT: Applicable conditions to the consent of the minor in relation to the services of the information society.

Where Article 6.1.a) applies in relation to the direct offering of information society services to children, the processing of a child's personal data shall be considered lawful when the minor is at least 16 years old. If the minor is under 16 years of age, such processing shall only be lawful if and only to the extent that the consent was given or authorised by the holder of parental responsibility or guardianship over the child.
The controller shall make reasonable efforts to verify in such cases that consent is given or authorised by the holder of parental or guardianship over the minor, taking into account the technology available.

The data subject may exercise the rights of access, opposition, rectification, deletion, limitation and portability and has the right to lodge complaints with the corresponding supervisory authority.

WHAT ARE COOKIES?

Cookies are small data files that are received on the terminal from the visited website and are used to record certain browsing interactions on a website by storing data that can be updated and retrieved. These files are stored on the user's device and contain anonymous data that is not harmful to your computer. They are used to remember the user's preferences, such as the selected language, access data or personalization of the website or APP.

Cookies or storage devices have traditionally been associated with web pages. However, they are currently used both on websites and on other types of platforms and applications (for example, APPs for smartphones and tablets).

Cookies can also be used to record anonymous information about how a visitor uses a site. For example, from which website/APP an access has been done, or whether a banner ad was used to get there.

Information society services may be provided by the publisher through a platform, computer application or a website/App which the user accesses from their terminal equipment.

WHY DO WE USE COOKIES?

We use our own and third-party cookies to analyse the use of our website and display advertising with preferences based on a profile elaborated from the user's browsing habits.

AHLERS LINDLEY, LDA., uses technical and analytical cookies for our website that will allow you to use secure areas, custom options, etc. In addition, AHLERS LINDLEY, LDA. uses cookies that collect data related to the analysis of the use of the website. These are used to improve the service to the user by measuring the use and performance of the website, in order to optimise and personalise it.

Google’s cookies, ANALYTICS: Google ANALYTICS is a free service offered by Google Inc. that collects information about the consulted pages of the web, at what time, which web browser, etc. Subsequently, this information is sent to Google Inc. servers.

WHAT USE DO WE GIVE TO THE DIFFERENT TYPES OF COOKIES?

According to its purpose:

Technical Cookies: These allow users to browse through a website, platform or application and use the different options or services. For example, those that serve to maintain the session, manage response time, performance or validation of options, use security elements and share content.
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Analysis or measurement cookies (analytics): allow the party responsible for them to monitor and analyse the behaviour of the users of the websites or Apps to which they are linked, including the quantification of the impact of advertisements. The information collected through this type of cookies is used to measure the activity of the websites, application or platform, in order to make improvements based on the analysis of the data on the use made by users of the service.
Advertising Cookies: These are cookies that, processed by the web administrator (or APP) or by third parties, allow analysing the browsing habits on the Internet in order to show advertising related to the user's browsing profile. Advertising cookies allow the management of advertising spaces based on specific criteria.

They store information on user behaviour obtained through the continuous observation of their browsing habits. This information allows developing specifics profiles to display advertising based on them.

Types of cookies according to its term:

Session Cookies: These are designed to obtain and store data while the user accesses a website/APP. They are usually used to store information that is only of interest to keep for the provision of the service requested by the user on a single occasion (for example, a list of products purchased) and disappear at the end of the session.
Persistent Cookies: They are those whose data keep stored in the terminal and can be accessed and processed for a period defined by the cookies’ controller, which can range from a few minutes to several years. In this respect, it is necessary to assess whether the use of persistent cookies is necessary, since the risks to privacy can be reduced with the use of session cookies. In any case, when persistent cookies are installed, it is recommended to reduce their temporary duration to the minimum necessary according to the purpose of their use.

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Possibility of denial of access to the service in case of refusal of cookies:

There may be certain cases in which the non-acceptance of the use of cookies prevents access to the website or the total or partial use of the service, provided that the user is properly informed about it and an alternative, not necessarily free, access to the service is offered without the need to accept the use of cookies.

OWN COOKIES IN USE:

The following cookies have been allowed, among others, when visiting this page:

DOMAIN	COOKIE	OWNER	FUNCTION	EXPIRATION
www.lindley.pt	cookiesAccepted	Own	Saves the user's acceptance of the use of cookies	Persistent
	ASP.NET_SessionId	Own	Identification of user preferences	Session
lindley.pt	_ga	Google Analytics	Statistics, stores and counts viewed pages	Persistent
	_ga_*	Google Analytics	Statistics. Store and count viewed pages	Persistent
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EXTERNAL COOKIES IN USE:

Some of the cookies in use

DOMAIN	COOKIE	OWNER	FUNCTION	EXPIRATION
google.com	AEC	Google	Security	Persistent
google.com	APISID	Google Ads Optimization	Analytics	Persistent
google.com	HSID	Google Ads Optimization	Security	Persistent
google.com	NID	Google Ads Optimization	Marketing. Store user preferences to provide ad serving or retargeting.	Persistent
google.com	SAPISID	Google Ads Optimization	Analytics	Persistent
google.com	SEARCH_SAMESITE	Google Analytics	Functional. Prevents the browser from sending this cookie together with requests from other wbs	Persistent
google.com	SID	Google Ads Optimization	Marketing and tracking	Persistent
google.com	SIDCC	Google Maps	Security. Provides trusted web traffic identification	Persistent
google.com	SOCS	Google	Remembers a user's cookie selection	Persistent
google.com	SSID	Google Ads Optimization	Analytics	Persistent
google.com	__Secure-1PAPISID	Google	Advertiser Measure ad performance and provide recommendations	Persistent
google.com	__Secure-1PSID	Google	Advertiser Measure ad performance and provide recommendations	Persistent
google.com	__Secure-1PSIDCC	Google	Advertiser Provides ads relevant to the user	Persistent
google.com	__Secure-1PSIDTS	Google	Advertising and analytics. Memorizes the user's preferences in the search engine	Persistent
google.com	__Secure-3PAPISID	Google	Advertiser Provides ads relevant to the user	Persistent
google.com	__Secure-3PSID	Google	Cookie necessary for the use of the options and services of the website	Persistent
google.com	__Secure-3PSIDCC	Google	Advertiser Provides ads relevant to the user	Persistent
google.com	__Secure-3PSIDTS	Google	Show advertising relevant to the user's interests	Persistent
linkedin.com	bcookie	Linkedin	Browser identification cookie used for diagnostic purposes	Persistent
linkedin.com	lang	Linkedin	Remembers the language version selected by the user of a website	Session
linkedin.com	li_gc	Linkedin	Stores the user's consent for the use of non-essential cookies	Persistent
linkedin.com	lidc	Linkedin	Preferences. To provide load balancing functionality.	Persistent

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WHERE CAN I GET MORE INFORMATION?

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Updated: 30/05/2025