SHIBUYA

SHIBUYA manufactures diamond core drilling machines and diamond tools for professional concrete work. Its BLU-DRILL range includes compact units and larger stand-mounted systems for drilling reinforced concrete, masonry, stone, and other construction materials.

• Specifications and operating features of the TS-255 / H2021 and TS-405 / H2231
• How hole diameter, drilling stroke, speed range, and machine size affect model selection
• SHIBUYA stand, feed, water-supply, and motor-protection features
• Professional concrete and construction drilling applications
• Voltage, spindle, distribution, accessories, and support details for U.S. buyers

SHIBUYA Diamond Core Drill Models

TS-255 / H2021 Diamond Core Drill

The TS-255 combines SHIBUYA's TS-255 stand with the H2021 motor for medium-diameter core drilling. With the specified 30 mm spacer, it has a maximum listed bit capacity of 250 mm. The standard stand provides 493 mm of drilling stroke, while optional long-column and swivel-base versions are available when a job requires more travel or a different mounting arrangement.

The H2021 comes in several electrical configurations. The 110–120 V version has a rated input of 2,300 W and two no-load spindle speeds, 450 and 950 rpm. SHIBUYA also lists 100 V and 220–240 V models.

The motor and carriage block weigh 12.2 kg, and the standard TS-255 stand with an 800 mm column weighs 6.6 kg. This is the lighter of the two systems covered here and is suited to jobs that stay within 250 mm.

Product Specifications

Maximum Bit Capacity	250 mm with 30 mm spacer
Rated Input	2,700 W at 100 V 2,300 W at 110–120 V 3,450 W at 220–240 V
Voltage	AC 100 V / 110–120 V / 220–240 V
Frequency	50/60 Hz
Number of Speeds	2
No-Load Speed at 110–120 V	450 / 950 rpm
Rated-Load Speed at 110–120 V	310 / 680 rpm
Spindle Thread	UNC 1-1/4" or A-Rod
Standard Available Stroke	493 mm
H2021 with Carriage Block Weight	12.2 kg
Standard TS-255 Stand Weight	6.6 kg

TS-405 / H2231 Diamond Core Drill

The TS-405 / H2231 is the larger system, with a maximum listed bit capacity of 400 mm when fitted with the specified 30 mm spacer. Its standard stand provides 633 mm of drilling stroke, 140 mm more than the TS-255. The optional AB61 swivel base increases the available stroke to 655 mm.

The 110–120 V H2231 has a rated input of 3,450 W and three no-load speeds: 300, 700, and 1,400 rpm. SHIBUYA also lists a 220–240 V model and a separate 110 V configuration.

The H2231 motor and carriage block weigh 17.8 kg, while the standard TS-405 stand weighs 14.8 kg. The added weight comes with greater bit capacity, a longer stroke, and a three-speed motor.

Product Specifications

Maximum Bit Capacity	400 mm with 30 mm spacer
Rated Input	2,750 W at 110 V 3,450 W at 110–120 V and 220–240 V
Voltage	AC 110 V / 110–120 V / 220–240 V
Frequency	50/60 Hz
Number of Speeds	3
No-Load Speed at 110–120 V	300 / 700 / 1,400 rpm
Rated-Load Speed at 110–120 V	230 / 550 / 1,080 rpm
Spindle Thread	UNC 1-1/4" or A-Rod
Standard Available Stroke	633 mm
H2231 with Carriage Block Weight	17.8 kg
Standard TS-405 Stand Weight	14.8 kg

Find the Right SHIBUYA Diamond Core Drill
for Your Project

Hole diameter is the simplest place to start. The TS-255 / H2021 handles bits up to 250 mm and has a lighter, 6.6 kg stand. The TS-405 / H2231 raises capacity to 400 mm and provides a longer standard stroke of 633 mm, but its stand weighs 14.8 kg.

Motor speed matters too. At 110–120 V, the H2021 offers two no-load speeds of 450 and 950 rpm. The H2231 has three settings: 300, 700, and 1,400 rpm. Match the speed to the bit diameter, material, and instructions for the specific core bit rather than choosing a machine on maximum capacity alone.

Both systems are listed in 110–120 V versions with UNC 1-1/4" spindle options. Before ordering for a U.S. jobsite, check the exact voltage, spindle, plug, circuit requirements, stand configuration, and included accessories with the supplier.

Features of SHIBUYA Diamond Core Drills

Lightweight Construction for Jobsite Handling

SHIBUYA uses die-cast parts, injection-molded components, and hollow spindle shafts to limit machine weight while retaining the rigidity needed for professional core drilling. When planning transport and setup, account for the combined weight of the motor, carriage, stand, core bit, and accessories, not just the stand or motor alone.

Hybrid Column Design on Selected Stands

Selected fixed-base stands, including the TS-405, use SHIBUYA's Hybrid Column design, which combines a steel outer shell with an aluminum core. Construction varies by stand, so check the column and base supplied with the machine, particularly when ordering an optional swivel base or column.

Steel Roller Carriage System

The carriage block moves along the stand column as the operator advances the core bit. Steel rollers in the carriage reduce drag, abrasion, and wear between the carriage and column. Inspect and maintain the feed mechanism as directed in the machine documentation.

Multi-Position Water Inlet

A multi-position inlet lets the operator route the water connection around the machine and nearby obstacles. Before wet drilling, plan the water supply and hose route, and set up suitable water-collection and slurry-control equipment.

Right- and Left-Hand Feed Positions

The feed handle can be mounted on either side of the stand, so the operator can work from the side with better access. This is useful when walls, pipes, or other equipment restrict the space around the drill.

Built-In Motor Overload Protection

Product information for the H2021 and H2231 lists an on/off switch with built-in motor overload protection. This protection does not replace proper bit selection and feed pressure. Follow the operating instructions, and reduce pressure or stop drilling if the motor shows signs of overload.

Applications and Jobsite Considerations

Concrete and Reinforced Concrete Drilling

SHIBUYA has made diamond core drilling machines and tools for concrete cutting since introducing its early core drills in 1969. The equipment is used on concrete, reinforced concrete, masonry, stone, and other building materials. Before drilling, locate reinforcement and embedded utilities, and review any structural or project-specific restrictions.

Openings for Pipes and Building Services

Diamond core drills cut round penetrations through walls, floors, and other building elements for pipes and building services. Select the machine and bit according to the finished hole diameter, drilling depth and direction, material, reinforcement, and available workspace.

Matching the Machine to the Hole Size

The TS-255 is intended for medium-diameter work up to 250 mm, with optional columns and swivel bases for setups that need more than the standard 493 mm stroke. The TS-405 handles diameters up to 400 mm and has more drilling travel. Larger cores require careful planning for stand anchoring, clearance, core weight, water control, drilling direction, and removal of the cut core.

What U.S. Buyers Should Confirm Before Purchasing

SHIBUYA lists configurations relevant to the U.S. market and names DITEQ Corporation in Lenexa, Kansas, as its partner for the American continent. Even so, buyers should verify the exact machine configuration for the intended U.S. application.

• Voltage: Product information for both the H2021 and H2231 includes 110–120 V versions. Check the voltage, frequency, rated input, current draw, and required circuit capacity for the machine being ordered.
• Spindle thread: SHIBUYA offers UNC 1-1/4" and A-Rod configurations. It identifies UNC 1-1/4" as a standard used mainly in Europe, the Americas, and Oceania.
• Model configuration: Review the quoted motor, stand height, base type, column, spacer, and other options.
• Core-bit compatibility: Verify bit diameter, effective drilling depth, spindle connection, wet-drilling requirements, and machine compatibility.
• Anchoring method: Determine whether the work requires mechanical anchors, a vacuum pad, or another approved method. SHIBUYA warns against using its vacuum pads in unstable positions, including vertical-wall and overhead drilling.
• Water management: Identify the required water supply, collection rings, fixtures, and slurry-control equipment.
• Electrical protection: Find out which protective devices come with the U.S.-market machine and which must be supplied at the jobsite.
• Parts and accessories: Check the availability of commonly needed parts, spacers, columns, vacuum equipment, water-control components, and compatible diamond bits.
• Warranty and service: Request the current warranty terms and repair procedures for the machine purchased through the U.S. distribution channel.

SHIBUYA Maintenance and Support

SHIBUYA assigns each completed product a unique serial number. According to the company, this number can identify when a machine was made and assist with service inquiries. Use the instructions supplied with the drill as the primary reference for inspection, installation, operation, and maintenance. Current documentation should take priority over older catalogs because specifications and appearance may change.

For U.S. customers, DITEQ Corporation in Lenexa, Kansas, is SHIBUYA's partner for the American continent. Before purchasing, ask the applicable distributor about technical support, repairs, warranty coverage, spare parts, and accessories for the selected machine.

About SHIBUYA

SHIBUYA COMPANY, LTD. is a Japanese manufacturer of machines and diamond tools for cutting and drilling reinforced concrete and other construction materials. It began manufacturing and selling its early TS-series core drilling machines in 1969 and now develops both diamond tools and the machines that use them through an integrated in-house system covering research, design, production, and promotion.

Based in Hatsukaichi, Hiroshima, SHIBUYA says its core drilling machines and tools are used in more than 30 countries. Its international distribution network includes DITEQ Corporation for the American continent.

Company Name	SHIBUYA COMPANY, LTD.
Headquarters	Hatsukaichi, Hiroshima, Japan
Diamond Core Drilling History	Core drill production since 1969
Main Product Focus	Diamond core drilling machines and diamond tools
Models Featured	TS-255 / H2021 and TS-405 / H2231
U.S. / American Continent Partner	DITEQ Corporation
U.S. Partner Location	Lenexa, Kansas