Lianhetech has an extensive range of non-exclusive products, which may be held in stock. The list below is indicative – if you cannot see what you want, we can also manufacture on a toll or contract basis.

Please Contact Us for a quotation. You may download our Standard Products pdf below.

Standard Products [pdf]

Lianhetech has an extensive range of non-exclusive products, which may be held in stock. The list below is indicative – if you cannot see what you want, we can also manufacture on a toll or contract basis. Please Contact Us for a quotation.

You may download our Standard Products pdf below.

Lianhetech EU Standard Products [pdf]Lianhetech Seal Sands Standard Products [pdf]

quality controlThe Quality Control (QC) department operates on a 24 hour basis. Analysis of raw material, in-process, final product and environmental samples is undertaken to the appropriate ISO 9001 certified and cGMP standards to meet our customers’ requirements.

Temperature and humidity-controlled sample storage is available for product stability testing. The department is equipped with 10 GCs, 20 HPLCs, a 400 MHz NMR, as well as an ion chromatograph, FTIR, UV and KF and the usual wet techniques. To support the waste management facilities there is also analysis for chemical oxygen demand (COD) and biological oxygen demand (BOD).

hazards managementLianhetech Seal Sands has a proven track record in the safe management of hazardous chemical processes.

Our expertise, flexible plant and broad permits ensure our ability to deliver the most challenging chemical solutions.

The implementation of any change is based on assessment by a comprehensive hazard management system.

Before introduction of any new substance a process is followed in a dedicated hazards testing laboratory – equipped with state of the art reaction calorimetery, such as RC1 with RTCal™, Differential Scanning Calorimetry, Carius Tube test and flash point determination.

Accelerated Rate Calorimetry (ARC) evaluates each reaction step to identify the basis and envelope of safety.

The site is Top-Tier COMAH (Seveso III) compliant, has a broad environmental permit and similarly has extensive consents in place to allow us to handle a broad range of substances at a range of scales.

developmentWe have five fully-equipped Development Laboratories, each fitted with large (2.0 to 2.3 m) fume cupboards and at least one walk-in fume cupboard for larger scale plant mimic equipment.

One laboratory is dedicated to Process Safety testing and is equipped with a Mettler™ RC1 Calorimeter, ARC, Carius tube, flash point and DSC apparatus.

We also have autoclave/pressure reaction capabilities and a number of automated reactors (Mettler™ LabMax) and multi-reactors (Argonaut) units as well as Radley’s equipment for process optimisation and development of reaction conditions.

The Development Laboratories are comprehensively equipped with analytical equipment – each having a number of GC and HPLC machines (including (GCMS and LCMS), which allows for rapid analysis and real-time monitoring of reactions.


chemistryWe carry out a broad range of chemical reactions at Lianhetech Seal Sands. With a wide variety of equipment, long experience in handling hazardous materials and processes safely, and on-site process safety testing we are set up to deal with most chemistries run at manufacturing scale.


Although by no means comprehensive, the following examples demonstrate a unique breadth of chemical experience on a commercial scale:


  • Sulphur Chemistry
  • Halogenation
  • Reductions
  • Oxidation
  • Low Temperature Capability/Organometallic Reactions
  • Ozonolysis
  • Other Hazardous Reagents/Reactions


Please contact This email address is being protected from spambots. You need JavaScript enabled to view it. to discuss your specific requests

  • warehouseWe have broad regulatory consent for storage of a wide range of materials in both bulk and drums.
  • A fully-fenced site with comprehensive CCTV coverage.
  • 24/7 site-based security and access control give us the ability to store and distribute Controlled Substances.
  • Specialised temperature-controlled storage in the range of -15°C to +30°C extends our capability.

OPerational Excellence

waste 1Lianhetech Seal Sands has direct pipeline access to one of the largest municipal liquid aqueous waste disposal facilities in Europe at Northumbrian Water’s Bran Sands facility.


Our sister company, Fine Environmental Services, operates one of only three, third party licensed, high temperature thermal oxidisers for incineration of other waste streams e.g. halogenated, organics or contaminated aqueous streams.

We also have excellent transport links which allows easy road haulage of other materials that are not suitable for our on-site facilities.



Product Isolation

At Lianhetech Seal Sands we have a range of isolation, drying and separation equipment:


Solid Isolation
  • Filters and filter driers: Rosenmund (316 stainless), Cogeim (Hastelloy™), Charles Thompson (Hastelloy™)
  • Centrifuges: Heinkel (Hastelloy™), Ferrum (PTFE lined), Broadbent (Stainless and Halar™ lined)

Material can then be charged into a range of driers:

  • Paddle driers: Lodige (Stainless), Buss (Stainless)
  • Rotary Cone Driers: Pfaudler Balfour (Glass-Lined)

If required, we also have sieving and milling facilities


 Liquid Isolation and Separation
  • Stainless steel batch stills and high vacuum glass still
  • Hastelloy and stainless steel Luwa wiped film evaporators
  • Chlorination (as chlorine gas)
  • Cryogenic facilities (ca -85ºC)
  • Fractional distillation
  • Continuous Reactors
  • Glove Box Technology for charging and discharging
  • HEPA Filtration facilities
  • Hydrogenation (5000L Hastelloy™and 9000L glass-lined steel)
  • Ozonolysis
  • Purified Water
  • Thiophosgenation
  • Other Specialised Equipment
  • Normal operating range of -30°C to +140°C
  • Specialist equipment from-85°C to -40°C for our cryogenic plant and up to +180°C for other specific equipment
  • Operating pressure ratings from full vacuum to 8 bar
  • Nitrogen delivered to the points of use by a validated supply system
  • Laminar flow booth, AJAX and DEC charging systems
  • Siemens PCS7 DCS control

core capabilities

Lianhetech Seal Sands has 4 workshops housing over 370,000L reactor capacity. Each workshop is designed with multi-purpose assets so it can be quickly reconfigured to suit a wide range of processes at a minimum of cost.

  • blue tanksWorkshops 1 and 2 offer a range of vessels from 4,500L to 13,600L in both Hastelloy™ and Glass Lined Mild Steel
  • Workshop 3 offers a range of larger vessels up to 20,000L in both Hastelloy™ and Glass Lined Mild Steel
  • Workshop 4 has pilot plant facilities from 100L up to 4500L in both Hastelloy™ and Glass Lined Mild Steel

Solids isolation is carried out on a range of stainless steel, Hastelloy™ and Halar™ lined centrifuges and filter-driers.

Performance Chemicals

SpecialtiesIn addition to supplying the traditional pharmaceutical and crop protection markets, Lianhetech Seal Sands custom manufactures performance chemicals for companies across the non-life science sector, such as electronics and materials science.

The quality requirements in these industries are no less demanding, and a very high chemical purity is often required.

Our flexibility in scale and materials of construction allow us to handle the most aggressive chemistries.

We work mainly on the basis of technical transfers, and our key skill is the optimisation and scale-up of customers' technical packages.

Confidentiality and protection of Intellectual Property are vital in the specialties market, where our customers’ formulations and product compositions are often proprietary.

All our business is conducted under secrecy agreement.


PharmaLianhetech Seal Sands is a custom manufacturer of intermediates and APIs who can meet your requirements from 100s kg to multi-tonnes scale.

We work mainly on the basis of technical transfers, and our key skill is the optimisation and scale-up of customers’ technical packages. 

All our business is conducted under secrecy agreement.

Crop Protection

Crop ProtectionLianhetch Seal Sands is a custom manufacturer of crop protection actives and intermediates.

Usually working from a process package provided by a client, our skills and experience are applied to finding solutions which will enable safe contained production, delivering yield and quality performance while minimising the requirement for plant investment and so shortening the lead time to first production. 

Our pharmaceutical heritage ensures the highest levels of containment and quality systems allowing full traceability to CropLife International standards.

All our business is conducted under secrecy agreement.

Continuous Improvement

Lean Enterprise

Process Optimisation

The Process Optimisation Team is designed to challenge and support all processes across site, using multidisciplinary teams.


Process Optimisation Principles:

Never compromise safety for productivity

Challenge all fixed ideas

Strive to meet our customer expectations, 100% on time, in full

Target Quality, Yield and Throughput in that order

Identify Process Constraints

Exploit the constraint (one hour lost from the constraint is one hour lost from the entire system)

Develop highly skilled, multidisciplinary, teams

Celebrate our successes and learn from our failure

Strive to improve





Contract Manufacturing

fine imageLianhetech Seal Sands is a leading European contract manufacturer of high quality fine chemicals for use in the Crop Protection, Pharmaceutical and Performance chemicals markets.

Established in 1977 and operating continuously from our Seal Sands site since 1984, we have over 40 years of contract manufacturing experience.

Previously known as Fine Organics Limited, the site was acquired by Lianhe Chemical Technology (Lianhetech) in June 2017. In April 2019, Fine Organics rebranded as Lianhetech Seal Sands to mark the completion of its integration into the Lianhetech business.

We operate a Quality System from ISO 9001 to cGMP which has been audited by US FDA and UK MHRA in 2017. We are ISO 14001 and 18001 certified. 


We have over 40 years experience understanding our customers needs..

  • We are a safe home for your valuable intellectual property
  • We are transparent and open with our customers
  • There is extensive technical expertise on site supported by the wider Lianhetech business
  • We handle extremely hazardous materials and reactions on a regular basis
  • Our site has good transport links and is convenient to visit
  • We have developed our own smart IT systems which match our business requirements perfectly
  • We are focused on custom manufacture, from custom synthesis to toll manufacture, and all points in between

SGS ISO 9001 UKAS 2014SGS ISO 14001 UKAS 2014Armed Forces Covenant - Employer Recognition Scheme - Bronze Award