STH6 - SLANT BED CNC TOOLROOM LATHE -
STH6 - SLANT BED CNC TOOLROOM LATHE - is backordered and will ship as soon as it is back in stock.
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Video Links
Smithy Training Videos - Learning to Machine on a Lathe Mill Combo
Years ago, Smithy produced a series of videos about learning to machine on a lathe mill combo machine. We hear often that these videos have been very helpful. This series is used in quite a few schools and tech training centers, literally throughout the world. Teachers like these videos because the concepts of machining are presented in a very logical way. Hopefully these videos will be helpful to you.
Best Practices - Lathe Turning
Introduction to standard metal late operations. An introduction to basic metal turning concepts is provided, along with basic instructions on lathe operation.
Workholding & Set up
Review of guidelines for installing a variety of work piece types and sizes on a metal lathe. This video covers turning between centers and proper mounting of a work piece in a lathe chuck. Proper use of lathe follow rests and steady rests is included.
Cutting Tool Selection
This video explains the selection and use of single point cutting tools on the lathe. Choosing the right cutting tool for a given operation is an important step when setting up a lathe. Selecting tool types and cutting speeds is also reviewed.
Facing Operations
This video demonstrates proper procedures and operator work process management for lathe turning and facing operations on a metal turning lathe. Reviews the various lathe turning operations that are typically used in a small shop setting.
Bench Top Milling & Drilling
Reviews the concepts of milling and drilling on a metal cutting mill/drill machine. Common practices in milling and drilling operations are presented. Tutorial on selecting best milling and drilling operations for a given task are provided.
Cutting Tool Selection
This video explains the selection and use of end mills and drill bits is covered. Choosing the right cutting tool for a given operation is an important step when setting up for a milling or drilling project. The foundation concept of selecting the best rotating cutting tool and cutting speed for a given project is also reviewed.
Workholding & Set-up
There are a wide variety of workholding tools that can be used to hold a work piece for milling or drilling operations. This video reviews the different concepts and practices in workholding for mill/drill operations. This video also offers some suggestions on workholding accessories to help you get started.
Basic Milling & Drilling Operations
This video starts by showing you machine controls used for milling and drilling operations on a small mill/drill machine. In this case, the Smithy Granite. The video also covers basic concepts and practices for effective metal milling and drilling on a bench top mill/drill machine.
Proper Machine Tool Maintenance
Proper maintenance of every machine tool is the key factor in that machine's ability to machine accurately and efficiently. Lubrication and maintenance are a big factor in assuring long life for every bench top lathe or mill/drill machine.
User Stories
Testimonials from Smithy's happiest customers
No Wait Time With My Smithy
"I have a granite 1324. I run a job shop outfit that does machining work for plastics manufacturing companies. My customers sometimes have orders with 2 or 3 day turn-around. I work in aluminum, plastic, and brass. What I enjoy most about Granite is the lathe work. It is really easy."
-Hai David Nguyen, L.K.B TX
More Convenient for Hobbyists
"I use my Smithy to make or modify parts for motorcycles and antique guns. I'm in this as a hobby. The Smithy probably has paid for itself but I haven't kept track. What is more important to me is the convenience of making my own parts, exactly as I need them when I need them."
-Kerry Klein, MI
Support Leads the Way
"I looked at other machining equipment but chose Smithy because of the quality, size, and availability of tech support. It's compact yet it does the work of larger units. It's a lot of machine that takes up a little space and it will pay for itself in the long run."
-Danny A. KY
Better Than a Grizzly
"After technical school, I did an apprenticeship in clock and watch repair and in tool and die making. I'm retired now and run a busy clock repair shop with my Smithy. I make parts for older clocks, cut clock gears, and make the cutters as well overhaul clock repair tools. I purchased a 9" x 19 bench lathe from Grizzly but returned it because of poor quality. I chose Smithy for its Sturdiness, its milling capabilities, and its compact size."
-William V-R., GA
No more down time
"Wendell and his business partner own a small textile factory. Last year, a German sewing machine clutch broke and production stopped. They weren't sure how long it would take to get a replacement part or if they could even find one. Putting their Smithy to work instead, they had the sewing machine back in production the same day."
-Wendell(Owner of Small Textile Company)
PRODUCT INFO
5 HP Servo Spindle
OVERVIEW
Slant Bed CNC Toolroom Lathe
Combines traditional tool room features with industry leading original bed design. Quality components and rigid manufacturing quality requirements assures that the machine will stay on track for the long haul.
Slant bed provides good chip flow and operator access. Compact design limits space requirements. High speed with accurate results - combined with "operator ease" features make this economical slant bed a good choice for shops that are looking for a versatile CNC lathe.
We are confident this STH6 is the lowest priced "quality" slant bed lathe tail stock you will find.
- Siemens 808D CNC Control
- Servo Motors & Drives on X/Z
- Closed Loop System
- Manual 6" 3-Jaw Chuck
- 4-Turret Tool Post, PLUS 2-Tool Gang
- Tail Stock w/12" Travel
- 1.89” Spindle Bore
- 50-3000 Spindle RPM
- 5 HP Spindle
- Travel: x = 12” / Y = 11”
- Feed Rate: 320 IPM X/480 IPM Z
- Efficient Ergonomic Design
- 18 months on the STH6 lathe
- 3 years total (2+1) on Siemens 808D Control
FEATURES
Lathe Machine | |
True Slant Bed - Heavy Cast Base | One piece cast iron foundation is a true 30 degree slant bed casting, providing large mass in a small footprint. More mass means higher rigidity and better heat dissipation. |
Slant Bed Design | A slant bed lathe allows for better chip flow. A slant bed lathe can handle a large volume of chips, while protecting the ways from chips and debris. Also provides easier access to chuck and cross-slide - making set-ups easier and faster. |
1.89” Spindle Bore | Generous spindle bore allows for easy pass through of large diameter stock. Easy access for optional pneumatic or hydraulic chuck. |
Solid Box Ways | Traditional way design has several advantages - including the ability to take heavy cuts and handling heavier work pieces. Induction hardened and ground for precision and long life. |
Manual 6” Chuck | With American Standard A2-6 spindle nose chuck mount. Manual 6” scroll chuck is standard option - adaptable for pneumatic chuck or 5C collet holders. |
4-Turret Tool Post | Electric indexing tool post allows for convenient tooling changes, by using lower cost standard size tooling. Useful in small part run operations, machine shops and prototyping - situations where you are changing tooling more often. |
Extra Tool Gang Plate | Located directly behind the turret tool post, this BONUS gang plate allows you to add additional tooling to your operation. Not limited to tooling you can fit in the 4-tool turret tool post. |
Tool Box and Tools | A set of the basic tools required for maintenance are included with this lathe. Gives you what you need to get up and running and for routine maintenance. |
Manual Tail Stock | With nearly 12” of travel on the tail stock and 4” of quill travel, this manual tail stock expands the capabilities of the STH6 to allow for turning extra-long stock or work pieces. |
Foundation Pads | Heavy machined leveling pads that adjust the height to keep your machine aligned and balanced. Solid multi-point contact with shop floor reduces vibrations and increases accuracy. |
Drive System | |
5 HP Servo Spindle Drive | Plenty of power to match the machine’s capacity. Provides higher torque - PLUS, rigid tapping and spindle positioning capabilities. |
50-3000 Spindle Speed Range | Servo driven spindle provides rapid speed changes, from 50 to 3000 RPMs in a single speed range. No need for changing gears or belts. Constant torque rise, even at low RPM are assured with the servo drive. |
Feed Rates: 320 IPM on X / 480 IPM on Y | Faster speeds equals higher production rates. The Siemens industrial control, and axis servo drive system provide the power and control that allows for higher speeds - many times faster than competitive systems. |
PMI Ball Screws | World-class standard ball screws that efficiently transmit rotary motion to linear motion. This allows for high-speed, highly accurate axis movements. Accurate ball circle diameters along full length of ball screw assures consistent drag torque and low noise. |
Safety/Operation | |
Ergonomic Control Panel and Operator Interface | Machine control panel adjusts and rotates up to 90 degrees. High tactile buttons, manual pulse generator, and convenient cycle start buttons improve operator convenience, efficiency, and safety. |
Auxiliary Cycle Start | Easy access buttons allow the operator to operate pneumatic or hydraulic chuck with the push of a button. Having a second E-Stop within easy reach also adds to the safety features of this lathe. |
Manual Pulse Generator | Handheld pendant that allows the operator to be independent from the main control panel. The rotating knob generates pulses that are sent to the machine control, allowing the operator to move the lathe in a pre-determined distance with each click of the knob detent. |
Automatic Lubrication System | Lubricates all wear points during machine operation at continuous time intervals. Benefits include: reduced labor, material costs and significant extension of bearing life. |
Programmable Coolant System | Control coolant flow at the control panel using standard M-Codes. Cycle times can be significantly reduced, while feeding and cutting speeds can be significantly increased. Proper cooling extends life of cutting tools. |
Work Light | Focused lighting elements increase operator efficiency and reduce fatigue. This light is flicker resistant, waterproof, and resistant to both cooling and lubricants. It is also resitant to impacts and vibrations. |
Tri-Color Alarm Light | Green light turns red when control alarm recognizes a machining error or machine malfunction. An operator standing away from the machine is visually alerted by the activated alarm light when machining cycle is finished or machine errors out. |
Siemens 808D CNC Control | |
Closed Loop System | System directly monitors motor position and velocity in real time. The system then automatically makes corrections to assure correct tool positioning. High accuracy and maximum parts quality ensure a minimal rejection rate. Also assures smoother surface finishes. |
Siemens Servos and Drives | Achieves rapid acceleration and higher speeds - maintains high torque throughout speed range. Motor is highly efficient - and it stays cool. Quiet at high speeds while having a vibration free operation. |
Ideal for CNC Beginners | Ideal for entry level CNC users, the innovative, integrative start-GUIDE from Siemens provides an on-line digital help function on every screen. Helpful instructions are available anytime - at a push of a button. |
Simple & Intuitive Interface | Well designed conversational programming functions and Wizards from Siemens, that help streamline programming at the control panel. All Siemens 808D controls come standard with this SINUMERIK Operate BASIC functionality. |
Compact and Robust | Industrial panel design with hardened features is ideal for harsh environments. Small compact design matches smaller machines tools like the AutoMate CNC line. |
USB Connector - Easily Handles Large Files | This unique Siemens function allows for the streaming of large program files direct from a USB. Large files are no longer a concern - other CNC systems lack this robust level of functionality. |
Built-In Helps | Several Siemens provided “assists” help streamline programming functions. One example would be Hot Keys. With the Hot Key function, machine operators can easily access commonly used screens using operator defined hot keys. |
SPECIFICATIONS
GENERAL SPECIFICATIONS - AUTOMATE CNC TOOLROOM LATHES | |||||
Photo | |||||
Model Name | STH6 Slant Bed Toolroom Lathe | FTL400 Flat Bed Toolroom Lathe | |||
Price | $22,899 | $26,899 | |||
TURNING CAPACITIES | |||||
Max Swing Over Bed | 15” | 20” | |||
Max Swing Over Carriage | 5.25” | 6.5" over gang plate, 9” with gang plate removed | |||
Max Length of Workpiece | 22” | 33” center to center | |||
Machine Repeatability | .0002” | .0002” | |||
TRAVELS & FEED RATES | |||||
X Axis | 12” | 11” | |||
Z Axis | 16” | 28” | |||
X-Axis Rapids | 320 IPM | 750 IPM | |||
Z-Axis Rapids | 480 IPM | 750 IPM | |||
Max Cutting Speed | 100 IPM | 315 IPM | |||
SPINDLE | |||||
Spindle Power | 5 HP | 7.5 HP | |||
RPM Range | 50-3000 | 50-2000 | |||
Spindle Bore | 1.89” | 2.44” | |||
Spindle Nose Taper | A2-5 | A2-6 | |||
Chuck Type | 5” Manual 3-Jaw Chuck | 8” Manual 3-Jaw Chuck | |||
TAILSTOCK (STANDARD) | |||||
Type | Manual | Manual | |||
Quill Travel | 4” | 4” | |||
Quill Taper | MT3 | MT4 | |||
WEIGHT/DIMENSIONS/CAPACITIES | |||||
Machine Weight | 4300 Lbs | 5500 Lbs | |||
Machine Dimensions | 77” x 60” x 75” | 105” x 63” x 70" | |||
Shipping Weight | 4630 Lbs | 5850 Lbs | |||
Coolant Capacity | 10.6 Gal | 17.2 Gal | |||
Hydraulic Capacity | 13.2 Gal | 13.2 Gal | |||
Power (Standard) | 220V 3 Phase Power | 220V 3 Phase Power | |||
Amperage Requirements | 21 Amp | 31.5 Amp |
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MI-409 PRO - Features
1) Gear Drive X Axis Power Feed: Adjust the hand located on the left side of the machine base to engage, disengage and change direction on the X axis power feed gear drive.
2) Gear Drive Y Axis Power Feed: Adjust the handle located on the right side of the machine base to engage, disengage and change direction on the Y axis gear drive.
3) Powered Mill Head Lift: Raise and lower mill head with the push of a button. No more hand cranking required.
4) Gear Drive Mill Quill with Auto-Feed: Smooth milling feed with auto adjustment for depth of cut. Provides rapid, accurate milling, as well as capabilities for tapping and boring. Allows for tapping of blind holes and boring to chosen depth.
Financing Options
Consumer / Personal Financing
- 48-month financing plan
- 5.99% interest rate
- Promotional Financing Plan only when purchasing Smithy equipment
Commercial / Business Financing
- Soft-pull credit - doesn't affect credit score
- Flexible rates and payment plans
- Approval with low credut
Canada - Business Financing
- Soft-pull on credit - doesn't affect credit score
- Flexible rates and payment plans
- Approval with low credit
WHO BUYS THESE MILLS FROM SMITHY?
Businesses/Professional: Schools purchase quite a few. As so military organizations, R & D labs, etc. Small machine shop/production shops are frequent buyers.Garage/Home Shops: The machines are designed and built for professional parts production settings. Because of the quality features - and reasonable price - these rugged milling machines are also popular with home and garage shop machinists.
IS THE TOOL PACK HELPFUL?
The FREE tool pack is intended to proved a basic tool set-up to get you started when your machine arrives. It’s a balanced set of tooling, but you will likely need more tooling once you figure out specific projects you want to do.
WHAT DO YOU MEAN BY “INSPECTED TWICE?”
Each lathe is inspected by trained company employees at the factory - PLUS, a second complete inspection is performed at our warehouse in Ann Arbor, MI before it is sent to the customer.
WHY ARE THESE MILLS BETTER THAN OTHERS ON THE MARKET?
For a machine tool to be truly great it must have attention paid to every step of its development - design, production, quality control, testing, and after sales support. No other bench top lathe on the market, at this price, has the same level of quality commitment at every step as these MIDAS mills.
HOW LONG HAVE YOU BEEN SELLING THESE MILLS?
Over 30 years.
DO MANY LATHE BUYERS ALSO PURCHASE MILLING MACHINES?
Yes, the MI-1440 lathe matches well with the MI-409MZ milling machine - a machine shop combo that was built to last. Many customers buy this combination.
WHY SHOULD I BUY A MILLING MACHINE FROM SMITHY?
Rugged Design
Quality Built In
Inspected Twice
Best Service Support
The best bench top mill value - for over 30 years!
DO I NEED TO BE A MACHINIST TO USE THE MACHINE?
NO, many buyers of these machines don’t have the experience. What they have is the need to make a certain part or product. What you need is a commitment and curiosity. We have a set of machining training videos on our website. You can usually find classes at a local community college or vo-tech school. Get a machine and get going! You won’t be disappointed.
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