Environmentally hazardous materials are defined as materials
that may be harmful to the human body or ecosystems when
contained in a product. In principle, we prohibit the use of
such substances in our components and raw materials. For
hazardous substances that may be present as impurities, we
have established tolerances and handle such materials accordingly.
With regard to the Restriction of Hazardous Substances Directive (RoHS)1 and REACH Regulation2 in the EU and the Administrative Measure on the Control of Pollution Caused by Electronic Information Products3 in China, we have adopted our Green Procurement Guidelines at our production facilities in and outside of Japan and provide information necessary to meeting our customers’ requirements. In addition, we submit REACH reports to the relevant authorities as required.
We stringently manage chemicals specified in the PRTR Law4 and are working to switch to products that do not contain such substances. Our goal is to reduce our handling of these chemicals by 3% each year, and we achieved a reduction from last year, going from 38,293 kg in 2019 to 37,962 kg in 2020. Please visit our homepage for details about our initiatives at each production facility.
Thirty-nine types of office supplies were replaced with eco-friendly alternatives in January 2020. As a result, all office supplies used throughout the factory are now green products.
Beginning September 2020, the anti-rust oil used in middle processes (for almost all products without customer-specified requirements that are in-between processes) was switched to a type that does not contain PRTR substances. As a result, the monthly volume of 1,2,4-Trimethylbenzene (a PRTR substance) used was reduced from 52 kg to 0 kg.
THK RHYTHM switched from using wooden crates to adopting reusable, triple-wall (reinforced) cardboard containers for grease shipments to TMA (USA) and TRNA (USA) beginning July and November 2020, respectively.
In addition, as of December, parts imported from TRMS (Malaysia) are now shipped in returnable containers (folding boxes) instead of cardboard.
Beginning October 2020, a packaging improvement has allowed bearings that THK RHYTHM Kyushu exports to TRA CZECH to be stacked in three layers instead of one.
As of May 2020, shipments between the Wuxi plant and THK MANUFACTURING OF CHINA (CHANGZHOU) now use a different method of loading products onto the 10-ton trucks, using a single level of steel pallets instead of creating two levels of wooden pallets with a steel platform. The load capacity has increased from 8 tons to 10 tons, and 10 pallets can now be loaded instead of 9. In addition, the new packing method for SRS products implemented in July has improved the load efficiency by allowing two layers of boxes to be stacked instead of one.
In consideration of employee health, the TRA CZECH plant ceased using abrasives that contain an SVHC material (boric acid, sodium salt, pentahydrate) as of June 2020.