SL-30/35 Straight Line Rip Saw

The Diehl SL-30 and SL-35 are Diehl’s entry level and mid size straight line rip saws — same compact footprint, same guaranteed glue-line cut, sized to your production. The SL-30 rip saw is the most affordable, an entry level rip saw with a 10 HP arbor and fixed feed; the SL-35 rip saw is the mid size rip saw, adding more power and variable feed speed for higher production. Both deliver Diehl’s legendary quality and durability at a price that fits growing shops.

SL-35.pdf

SL-30.pdf

Specifications — SL-30 vs SL-35

Specification	SL-30 (entry level)	SL-35 (mid size)
Arbor motor	10 HP (15 HP optional)	15 HP (20 HP optional)
Feed motor	1-1/2 HP	2 HP
Feed speed	Fixed 60 FPM	Variable 50–140 FPM
Vertical arbor adjust	—	Yes (handwheel)
Machine type	Single-blade straight line (glue-line) rip saw — straight or hollow-ground cut
Stock thickness	3/8″ min; up to 1.5″ (14″ blade) or 2.55″ (16″ blade)
Minimum length	12″
Throat capacity	19″
Saw blade	14″ or 16″ diameter; 2″ arbor bore
Arbor speed	3,450 RPM, belt-driven, with automatic arbor brake
Accurate glue-line cut	Straight or hollow, up to 5′
Feed system	Diehl chain/race with pressure-roll system
Safety	Dual anti-kickback fingers (cam-controlled upper + lower in table); electrically interlocked saw pit; pivoting pressure-beam side guard
Dust collection	1,250 CFM required
Worktable height	Nominal 34″
Electrical	208/240/480/575 V, 3-ph, 60 Hz; 380 V, 3-ph, 50 Hz; 110 V control circuit
Dimensions	65″ L × 53″ W × 56″ H
Weight	2,750 lbs net (2,960 crated)
Options	Wise Guide auto stock guide · No-Hassle Anti-Kickback Control · Diehl Return Conveyor
Country of origin	Made in the USA — Diehl Machines (Wabash, IN)

Specifications

High Quality Dependable Machines at an Affordable Price

Over 85 years of rip saw manufacturing experience has been put to use developing the SL series of straight line rip saws. The SL-35 features a 15 HP arbor motor, vertical arbor adjustment, and a 2 HP variable speed drive that gives the capacity for higher feed speeds.

Diehl’s proven chain/race, spindle/arbor and pressure roll system make up the foundation for this saw that produces the industry’s most accurate glue line cut, guaranteed. The Diehl SL-35 is the rip saw that you can depend on for continuous quality performance.

Front

The front view illustrates access into the electrically interlocked saw pit area, the dual anti-kickback finger, system the pivoting pressure beam side guard and the adjustment handwheel to accommodate correct positioning of the saw blade for varying thicknesses of material.

Back

The machine’s back side is shown with the arbor drive housing cover removed to depict the automatic arbor brake.

Optional Add-On

“Wise Guide” Automatic Stock Guide System

The system allows the operator to easily program a cutting list of multiple widths with the touch screen. It then calculates the best possible yield from each board, automatically positions the guide before each cut and tallies the cut piece against the cutting list to eliminate over production.

How the SL-30/35 Works

Both the SL-30 and SL-35 are single-blade straight line rip saws — each board is fed straight past one blade to produce a clean, glue-ready edge:

Feed. Diehl’s chain/race feed carries each board dead-straight past the blade under a pressure-roll system — at a fixed 60 FPM on the SL-30, or an infinitely variable 50–140 FPM on the SL-35.
Rip. A single arbor-mounted 14″ or 16″ blade makes one clean, straight (or hollow-ground) cut at 3,450 RPM, with an automatic arbor brake — driven by a 10 HP motor (SL-30) or a 15 HP motor (SL-35).
Stay safe. A dual anti-kickback finger system, an electrically interlocked saw pit, and a pivoting pressure-beam side guard protect the operator; the SL-35 adds a handwheel for vertical arbor adjustment.

Both produce the industry’s most accurate glue-line cut, guaranteed — the difference between them is power and feed speed.

SL-30 vs SL-35: Which Model?

The SL-30 and SL-35 share the same footprint, capacity, and glue-line accuracy — so the choice comes down to power and feed speed:

Choose the SL-30 (entry level) for the most affordable straight-line rip saw — a 10 HP arbor and a fixed 60 FPM feed. Ideal for shops adding their first industrial straight-line saw.
Choose the SL-35 (mid size) for higher production — a 15 HP arbor and variable 50–140 FPM feed to match your stock, with the speed and performance of larger saws.

Applications

The SL-30 and SL-35 fit shops that need dependable straight-line ripping without a full-sized machine:

Glue-line ripping — straight, glue-ready edges for edge-glued panels and joinery.
Edge straightening — turning rough or wavy edges into a true reference edge.
Ripping to width — accurate, repeatable widths across solid-wood parts (optional Wise Guide for programmed cut lists).
First industrial saw / growing shops — the SL-30 as an affordable entry point, the SL-35 as the step up in production.
Straight or hollow-ground cutting — clean glue joints for panel and component work.

Whichever model fits your volume, both bring Diehl’s guaranteed glue-line cut to a mid- or entry-level footprint.

Industries Served

The SL-30/35 supports solid-wood operations across:

Furniture — glue-ready edges for panels and frame stock.
Cabinetry — edge-glued panels, face frames, and door parts.
Flooring — straight-line ripping of solid hardwood.
Custom Millwork & Mouldings — accurate blanks and straightened stock.
Doors — panel and component stock.

Emerging applications: growing shops moving up from a lighter-duty saw, where an entry-level or mid-size straight line rip saw is the practical path to Diehl glue-line quality.

Optional Add-on

No-Hassle Anti Kickback Control

Automatic raising and lowering of the lower kickback fingers is available as an option on all Diehl rip saws, and is especially recommended for operations where shorter stock is being processed. The feature provides two alternative methods to sense stock presence and lower the fingers below the worktable for easier and faster feeding.

To momentarily drop the lower kickback fingers for lateral positioning and feeding, stock may either be passed over a table sensor or brought into direct contact with the fingers.

Then, as the stock is being fed into the machine, feed roll sensors determine that the piece is securely held and allow the fingers not being held down by the stock to return above the table.

This entire lowering and raising of fingers not held down by the stock takes place before the material makes contact with the blade, insuring that a safe environment is maintained by the dual anti-kickback finger system.

Any fingers held down by the stock as it enters will automatically return to their up position as the trailing edge passes through the fingers.

Optional Add-on

Diehl Machines Return Conveyor

Adding a Diehl Machines Return Conveyor to a straight-line rip saw is a strategic move that can bring multiple operational benefits, from increasing productivity and improving safety to optimizing workflow and reducing costs. The investment in a return conveyor can pay off quickly by enhancing the efficiency and profitability of woodworking operations.

Frequently Asked Questions

What’s the difference between the SL-30 and SL-35?

Both are Diehl single-blade straight line rip saws with the same footprint and glue-line accuracy. The SL-30 is the entry-level model — a 10 HP arbor and a fixed 60 FPM feed. The SL-35 is the mid-sized model — a 15 HP arbor and a variable 50–140 FPM feed for higher production.

What is the SL-30 rip saw?

The SL-30 is Diehl’s most affordable straight line rip saw — an entry-level machine with the same guaranteed glue-line cut as Diehl’s larger saws, at a lower price.

What is the SL-35 rip saw?

The SL-35 is Diehl’s mid-sized straight line rip saw — an economically priced machine with the speed and performance of large saws, thanks to a 15 HP arbor and variable feed to 140 FPM.

Which should I choose?

Choose the SL-30 if you want the most affordable entry-level saw with a fixed feed; choose the SL-35 if you want more power and variable feed speed for higher production. Both share the same capacity and glue-line accuracy.

What stock can they handle?

Both handle material from 3/8″ up to 2.55″ thick (with a 16″ blade), a 12″ minimum length, and a 19″ throat capacity.

What options are available?

Wise Guide automatic stock guide (programmed cut lists and best-yield positioning), No-Hassle Anti-Kickback Control, and a Diehl Return Conveyor — on both models.

How do they compare to the SL-65?

The SL-65 is Diehl’s full-sized straight line rip saw — higher power, higher feed speed, and larger capacity. The SL-30 and SL-35 are the entry-level and mid-sized models for shops that don’t need a full-sized machine.

Are they made in the USA?

Yes. Both are built by Diehl Machines, a division of Mereen-Johnson, in the USA, with more than 85 years of rip saw manufacturing experience.

Automation & Robotics

Tailored Solutions for the Solid Wood Sector

Mereen-Johnson stands at the forefront of delivering cutting-edge automated handling solutions that will streamline your workforce and wood machinery assets. Our smart, automated handling solutions are meticulously crafted to enhance your machine throughput and efficacy while substantially trimming your labor expenses.

Our complete spectrum of services ranges from conceptualization and design of production lines to installation, personnel training and ongoing maintenance, and we cater to a wide array of client requirements, offering both standardized system solutions and fully personalized options to suit your specific needs.

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The Mereen-Johnson Difference

Made in the USA Quality

Vertically integrated manufacturing in the USA means we control every step of the process to deliver the performance and longevity that the industry has grown to expect from us.

Turnkey Custom Solutions

Listening to your specific needs, we will adapt a standard machine or develop a fully custom solution, including automation and robotics, and manufacture it in-house.

Excellence Under One Roof

Our state-of-the-art production space has room to build, test and prove large-scale design solutions. Design-build teams work together to make your custom concept a reality.

Parts, Service & Training

We will always support your machine. From training programs to replacement parts, schematics to software support, we’ve got you covered, remotely or onsite.

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