Xi'an Industrial Machinery Co., Ltd — machine tools since the 1990s
Engine Rebuilding Machine

Vertical Air-Floating Cylinder Honing Machine THM170

The THM170 is a hydraulic vertical honing machine whose head carries a pneumatic system, so the honing spindle is positioned longitudinally and transversally over the workpiece by air rather than by cranking a table. On a multi-cylinder block that is the difference between moving between bores in seconds and setting up...

Overview

What This Machine Does

The THM170 is a hydraulic vertical honing machine whose head carries a pneumatic system, so the honing spindle is positioned longitudinally and transversally over the workpiece by air rather than by cranking a table. On a multi-cylinder block that is the difference between moving between bores in seconds and setting up each one from scratch. The block supporting base adjusts in both height and inclination, which is what allows flat and V blocks to be assembled on the same machine without a dedicated fixture for each. The honing spindle has steplessly variable rotation speed, and the speed in use is shown on the control panel rather than inferred from a lever position. Maximum honing diameter is 170 mm and maximum honing depth 360 mm, with spindle rotation speed from 100 to 300 rpm. For a rebuild shop honing both inline and V engines, the adjustable inclination on the base and the air-positioned head are the two features that earn their cost back in setup time.

Key Benefits

Why Buyers Choose This Machine

  • Pneumatic head positioning moves the honing spindle longitudinally and transversally without cranking a table
  • Block supporting base adjusts in height and inclination so flat and V blocks both mount on the machine
  • Steplessly variable spindle rotation speed sets surface speed exactly for the bore and stone
  • Spindle speed shown on the control panel so the setting is a number the operator can record
  • 170 mm maximum honing diameter and 360 mm depth cover car and light commercial cylinders
  • 100 to 300 rpm spindle range suits both small and large bores
  • Hydraulic machine construction for smooth controlled stroke through the bore
Application

Where Vertical Air-Floating Cylinder Honing Machine TH Earns Its Place

Problems It Solves

  • Repositioning a heavy honing head over every cylinder by hand is slow and tiring
  • V blocks cannot be honed square without a base that inclines to the bank angle
  • Fixed spindle speed steps force a compromise between bore diameter and stone grade
  • An operator cannot repeat a setting that is not displayed anywhere
  • Separate fixturing for flat and V blocks costs money and floor space

Who It Is For

  • Engine rebuild shops honing both flat and V blocks
  • Workshops that need repeatable spindle speed settings rather than lever positions
  • Machine shops honing large cylinders up to 170 mm
  • Distributors supplying engine reconditioning equipment into export markets

Application Scenarios

  • Honing inline engine block cylinders after boring
  • Honing V blocks with the supporting base inclined to bring the bank upright
  • Large cylinder honing up to 170 mm diameter and 360 mm deep
  • Moving quickly between bores on a multi-cylinder block using the pneumatic head positioning
  • Setting a specific spindle speed for a given stone grade and recording it for the next block
Specification

Technical Detail

Technical Features

  • Hydraulic vertical honing machine construction
  • Head provided with a pneumatic system for spindle positioning
  • Longitudinal and transversal positioning of the honing spindle on the workpiece
  • Block supporting base adjustable in height and inclination
  • Honing spindle with steplessly variable rotation speed
  • Spindle speed visualised on the control panel
  • Maximum honing diameter 170 mm
  • Maximum honing depth 360 mm
  • Spindle rotation speed 100 to 300 rpm

Specifications

Machine typeHydraulic vertical air-floating cylinder honing machine
ModelsTHM170
Max honing diameter170 mm
Max honing depth360 mm
Spindle rotation speed100 to 300 rpm, steplessly variable
Spindle positioningPneumatic, longitudinal and transversal
Block supporting baseAdjustable in height and inclination
Block typesFlat and V blocks
Speed displayVisualised on the control panel

Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.

Manufacturing and Supply

How It Is Built and What Can Be Changed

Operations Performed

  • Honing
  • Cross-hatch finishing

Quality Control

  • Honed bore diameter and surface checked on a test cylinder before shipment
  • Spindle speed verified across the 100 to 300 rpm stepless range against the panel display
  • Pneumatic head positioning checked for repeatability in both axes
  • Base height and inclination adjustment tested with flat and V block setups
  • Machine run in through a honing cycle in our assembly workshop

Customisation Options

  • Block supporting fixtures specified for the flat and V blocks you hone
  • Honing heads and stones specified for your bore diameters up to 170 mm
  • Supply voltage and frequency set to your market
  • Control panel markings and manual prepared in your working language
Comparison

How It Compares With the Alternatives

XAIMC VHM170 automatic cylinder honing machineThe VHM170 runs an automatic CNC honing cycle with stepless stroke rate; the THM170 keeps the operator positioning a pneumatically assisted head with stepless spindle speed
XAIMC 3MB9817 vertical honing machineThe 3MB9817 shifts its fixture between 0, 30 and 45 degrees on fixed speed steps; the THM170 has a continuously adjustable base inclination and a stepless spindle
Manually positioned honing machinesWithout pneumatic head positioning every cylinder on a block has to be found by hand, which is what makes multi-cylinder honing slow
Use Guide

Running the Machine

Step 1

Set the block supporting base to the height and inclination needed for the block, flat or V

Step 2

Mount the block and clamp it on the base

Step 3

Use the pneumatic head system to position the honing spindle over the first bore

Step 4

Fit honing stones for the bore diameter up to 170 mm

Step 5

Set the spindle rotation speed within 100 to 300 rpm and read it on the control panel

Step 6

Hone the first bore within the 360 mm depth and check size and cross-hatch

Step 7

Move the head to the next cylinder and repeat at the same recorded speed

Read Next

Related Applications and Guides

Industry

Engine Rebuilding Workshops

Engine rebuilding workshops recondition blocks heads crankshafts and valves to a geometry the engine will hold for a full service life. XAIMC supplies

See the equipment →

Industry

Automotive Service and Fleet Workshops

Service centres and fleet depots keep vehicles moving. XAIMC supplies the lifting tyre wheel and fluid handling equipment those workshops use, includi

See the equipment →

Guide

Cylinder Boring vs Honing - What Each Operation Does

Boring removes metal to bring a worn cylinder back to a round straight bore at a new oversize, while honing produces the final diameter, geometry and

Read the guide →

Guide

How to Choose a Valve Seat Cutting Machine

A valve seat cutting machine machines the seat angles and the valve guide bore in a cylinder head so that the valve seals concentrically against the s

Read the guide →

FAQ

Questions About Vertical Air-Floating Cylinder Honing Machin

What bore sizes and depths will it hone?

Maximum honing diameter is 170 mm and maximum honing depth is 360 mm.

Can it hone V blocks?

Yes. The block supporting base is adjustable in height and inclination to allow the assembling of flat and V blocks.

Is the spindle speed adjustable?

Yes. The honing spindle has steplessly variable rotation speed from 100 to 300 rpm, shown on the control panel.

How is the spindle positioned over each cylinder?

The head is provided with a pneumatic system for easy longitudinal and transversal positioning of the honing spindle on the workpiece.

What air supply does it need?

The head positioning is pneumatic, so shop air is required. Tell us your available air supply and we will confirm the requirement before shipment.

What voltage will it be supplied at?

We set supply voltage and frequency to your market. Confirm your shop supply when you place the order.

What are your payment and trade terms?

FOB CFR and CIF. Payment is 30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.

Request a Quote on the Vertical Air-Floating Cylinder Honing Machin

Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.