立石ファイバー List of Products and Services

We would like to introduce our company's tolerance and roundness capabilities in "stop grinding processing." This method is suitable for workpieces with flanges and steps, with diameters ranging from Φ3 to 40mm and lengths up to 100mm. Additionally, one of the advantages is that it does not require any operations to process the center hole, which helps reduce labor costs. 【Examples of processed items (partial)】 ■ Pins ■ Bolts, Torx ■ Relief valves *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Centerless grinding is a type of cylindrical grinding, but it does not have a center to support the workpiece, hence it is called center-less, meaning "without a center." One of the advantages of centerless grinding is that the workpiece is guided along its entire length by the regulating wheel and blade, which minimizes the deformation of the workpiece itself, allowing for high-precision grinding. Our "through grinding processing" offers good tolerances and roundness, and can accommodate workpieces without steps. Please feel free to contact us when you need our services. 【Processing Example】 <Straight Pin> ■Dimensional Tolerance: Φ10 +0.015 +0.006 ■Grinding Area: L=30 ■Material: Hardened Product *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We would like to introduce our "Double-Sided + Rotary Grinding Process." When the surface areas or allowances of the top and bottom differ significantly, we combine the advantages of double-sided grinding and rotary grinding for processing. Please feel free to contact us when you need our services. 【Processing Example: L-shaped Bracket】 ■Dimensional Tolerance: t = 8 → t = 6.95 ± 0.047 ■Material: S45C (raw material) ■Remarks - Deburring with double-sided grinding - Removing 1mm from the taper side with rotary grinding - The workpiece is dimensionally adjusted with double-sided grinding *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We would like to introduce the "Rotary Grinding Process" of Tateishi Fiber Co., Ltd., which has good surface roughness (approximately Rz3.2). This process is suitable when the upper and lower machining allowances are different. The workpiece is fixed using magnetic force and grinding is performed. Additionally, the size of the workpieces that can be processed by our machines ranges from Φ11 to Φ180mm, with a thickness of t = 1 to 30mm. 【Processing Example: Flange】 ■Dimensional Tolerance: t = 7 +0.5 -0.2 ■Surface Roughness: Ra0.2 ■Remarks ・Flatness 0.05 ・Care should be taken to avoid scratches as it is a sealing surface. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We have approximately 40 customers for contract processing, and we possess the know-how to consistently reproduce our customers' processing conditions. Therefore, we can accommodate small lot processing using double-sided grinding machines and centerless grinding machines, which are generally considered suitable for mass production. In particular, double-sided grinding accounts for 50% of our processing, and we perform several setup changes throughout the day. By utilizing highly productive mass production machines such as double-sided grinding machines, we can achieve a reduction in processing time. Additionally, to visualize the entire process from "acceptance to delivery" of our customers' valuable products, we have implemented a production management system and are actively working on IoT integration of our factory equipment. **Features** - Possession of know-how to consistently reproduce customers' processing conditions - Capability to accommodate small lot processing with double-sided grinding machines and centerless grinding machines - Double-sided grinding involves several setup changes throughout the day, allowing for a variety of small lots - 50% of the overall processing is double-sided grinding *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

5% of our monthly production consists of small lots ranging from 1 to 1,000 pieces. Due to the demand for small lots, we have the technology to change setups several times a day for both flat and outer diameter processing. Additionally, taking advantage of our convenient location in Naka Ward, Nagoya City, we can accommodate short delivery times. We typically deliver within one week after receiving the items. Changing setups for the polishing equipment is very labor-intensive, such as replacing grinding wheels, so we have many skilled staff members. 【Supported Lot Sizes】 ■ Centerless grinding can be done from 1 piece ■ Rotary grinding can be done from 50 pieces ■ Double-sided grinding can be done from 10 pieces *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company's horizontal double-sided grinding machine places the workpiece in a V-shape, fixing the outer diameter while grinding the end face. Since the positions of the outer diameter and end face are always constant, the perpendicularity is high precision, within 0.01. Additionally, because the outer diameter is held, the angles of the left and right grinding wheels can be set with a ratio of 3:1. [Processing Example] ■Product Name: Valve for Transmission Parts ■Method: Horizontal Belt Clamp Method *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

In a double-sided grinding machine, since the workpiece is not fixed during the grinding process, tall workpieces are ground in an unstable condition, resulting in inconsistent precision. At our company, we adjust the thickness and shape of the carrier plate that supports the workpiece, as well as the type of grinding wheel, to meet the conditions suitable for the workpiece, accommodating an outer diameter to height ratio of 1:0.72. Please feel free to contact us when you need assistance. 【Processing Example】 ■Product Name: Brake Component Color ■Diameter φ15: Height t = 14 with a ratio of 1:0.93 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

At Tateishi Fiber Co., Ltd., we perform double-sided grinding of workpieces with different upper and lower surface areas and allowances by setting various conditions. When the upper surface area is 2604 mm² and the lower surface area is 5403 mm², which differs by more than twice, grinding is also possible when the upper surface allowance is 0.3 and the lower surface allowance is 0.1. Please feel free to contact us when you need our services. 【Processing Example】 ■Product Name: Transmission Parts Plate ■Upper Surface Area: 2604 mm² (Allowance: 0.3) ■Lower Surface Area: 5403 mm² (Allowance: 0.1) ■Method ・Rotary Carrier Method ・Infeed Carrier Oscillation Method *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company performs double-sided grinding processing using highly productive mass production machines, such as double-sided grinding machines, which achieve a reduction in processing time. We have about 40 customers for contract processing and possess the know-how to consistently reproduce our customers' processing conditions, allowing us to accommodate small lot production with double-sided grinding machines and centerless grinding machines, which are generally considered for mass production. Please feel free to contact us if you have any requests. 【Features】 ■ Processing both sides at once reduces processing time. ■ By rotating the workpiece during processing, we can achieve good flatness and parallelism, enabling stable mass production. ■ We can perform grinding of non-magnetic metals that cannot be fixed with magnets (compatible with non-magnetic workpieces such as stainless steel and copper). *For more details, please download the PDF or feel free to contact us.

• Wafer processing/polishing equipment