10-Series Seed Pro Bulk Box Seed Tender

The Unverferth Seed Pro® bulk box carrier seed tender not only delivers seed directly to your planter or drill, you can position it 90 degrees to the unit for conveying between two other sources. Models 410XL and 410 easily carry four 50 seed unit boxes while the model 210 carries two boxes.  For optimum transport safety, standard equipment heavy-duty double-axle undercarriage features lighting, reflective striping, transport chains and brakes.

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Patented Conveyor Design

The Unverferth Seed Pro bulk box carrier seed tender features a patented design so the conveyor can rotate 90° and be positioned parallel to the tender to easily transfer material from one location to another.  Every conveyor is equipped with a convenient conveyor arm locking mechanism and spring lift assist for easy handling when pivoting the conveyor.

Seed Pro 410XL Bulk Box Tender Filling Row Units

Seed Protection

Handling your high-value seed with the greatest care is crucial for any seed tender.  At Unverferth, we’ve spent years researching and testing different designs, resulting in the Seed Pro conveyor which excels in protecting your high-value seed investment.

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Conveyor Technology

The patented 5-ply rubber conveyor belt features offset rows of cupped cleats to minimize seed damage while providing a greater carrying capacity.  The offset in each cleat allows the belt to cup inside the conveyor tube and pass by each other to reduce seed pinching.

The conveyor inlet features patented side seals and a brush-seal-brush design to prevent seed from back feeding into the bottom of the conveyor, minimizing seed damage.

The extended-length rounded conveyor hood is rubber lined for enhanced seed flow and protection.

The top-mounted, 6-cubic-inch hydraulic motor pulls the belt forward, keeping it tight for the most efficient and gentlest seed movement.

Unloading Speeds

If you’re filling a larger central fill planter or drill, the 8” conveyor tube on models 410XL and 410 is a good choice for unloading up to 35 bushels per minute.

The 6” conveyor tube on models 410 and 210 unload at 16 bushels per minute for precise control when filling individual planter or drill boxes.

Seed Pro 410XL Bulk Box Tender Filling Planter

Conveyor Length

Conveyor length is measured from center of the top bearing to center of the bottom bearing for a true measurement of side reach and unloading height.

Seed Pro® 410XL Conveyor Raised

Easy Filling

Model 410XL utilizes a 21’ long conveyor with a maximum unloading height of 13’6” and features 52” of hydraulically-operated vertical height adjustment.

Model 410 features 41” of hydraulic vertical height adjustment and model 210 features 50” of hydraulic vertical height adjustment.  Both models utilize an 18’ long conveyor with a maximum unloading height of 12’.

All models are standard with two downspouts and the downspouts are tool-free removable.

The 4’ flex spout is ideal for filling central fill planters or drills while the 2-stage telescoping downspout is ideal for filling individual planter boxes and reach up to 34’ on model 410XL and 30’ on models 410 and 210.

Standard Wired Remote

Conveyor Controls

The Seed Pro is standard with an electric 2-function wired remote that raises/lowers the conveyor and turns the conveyor on/off.

All models can be equipped with optional wireless remote packages that can be found in the accessories section.

Convenience Features

Every conveyor is equipped with the Smooth-Start engagement feature which gently brings the conveyor belt up to maximum speed, which increases the belt life.

Electronic speed control allows the operator to adjust the speed of the conveyor belt independently from the engine for fine-tuning the unloading speed.

A tool-free removable belt access cover allows the operator to quickly check the belt tension to ensure proper operation.

Cleaning out seed between varieties is quick and easy with the tool-free removable hinged cleanout door located at the bottom of the conveyor.

Additional Features

The conveyor can be stored in the front or swung 180° to the rear of the seed tender for convenient road transport.  Stainless steel rollers and roller plates allow the conveyor to swing from front to rear and locking increments ensures the operator can lock the conveyor every 10” for unloading versatility.

A redesigned over-center hopper lock is easy to use and the large rubber hopper intake at the bottom of the conveyor increases seed flow.

A standard hopper cover has elastic bands that hold it tightly in place to safeguard the contents.

Pro Box Platform

Dual Compartment Unloading Chute

Seed Handling Versatility

All 10-Series Seed Pro seed tenders feature a dual-compartment unloading chute design for handling multiple seed varieties.

The 5”x6” wheel-operated unloading doors and standard regulating baffle maximizes seed flow and direct seeds into the intake of the conveyor for increased unloading efficiency.

Seed Pro Bulk Box Tender Loading Pro Boxes

Models & Capacities

Models 410XL and 410 can carry up to four 50 seed unit boxes.

Model 210 can carry up to two 50 seed unit boxes.

Seed Pro 410XL Bulk Box Tender Latching Pro Boxes

Platform Design

Easy-to-use heavy-duty steel hinge latches with locks securely fasten the pro boxes to the platform for worry-free operation.

Standard protective lids cover the unloading chutes when not in use to keep out moisture and debris.  A convenient storage holder for the lids ensure safe keeping when not in use.

Two viewing windows in the unloading chute allow the operator to easily monitor seed flow during unloading.

Briggs Engine

Engine & Power-Pak

A commercial-duty gas engine powers the hydraulic system and features an electric start, battery quick-disconnect for storage, and a large control box on the seed tender's conveyor side for easy operation.


Reliable Transportation

The Unverferth Seed Pro is manufactured with the highest quality components for unmatched durability.  Transportation from field to field goes quickly and smoothly with the rugged undercarriage design.

Seed Pro 410XL Bulk Box Tender Tandem Undercarriage

Axles & Tires

Models 410XL and 410 feature two 7,000 lb. tandem torsion axles and 235/85x16 highway-rated tires.

Model 210 features tandem 4,000 lb. torsion axles and 225/75x15 highway-rated tires.

Gooseneck Hitch with Air Cushion


All models are standard with a bumper hitch with a 2-5/16” ball.  Models 410XL and 410 can be equipped with a gooseneck hitch to match your towing vehicle.

For a smoother and gentler ride, you can equip your gooseneck hitch with an optional cushioned hitch receiver on models 410XL and 410.

Seed Pro 410XL Bulk Box Seed Tender

Transportation Safety

Electric brakes are standard on all axles, transport chains, and appropriate highway lighting and markings for safer road travel.


Seed Pro 210 Bulk Box Tender Filling Planter

Industry-Leading Choices

No two farming operations are exactly the same and the seed tender that serves your planting equipment should be tailored to fit your needs.  Customize your Seed Pro with a wide range of industry-leading accessories such as wireless remotes, scales, talc applicators and much more!

2 and 4-Function Wireless Remote

Wireless Remotes

Model 210 is available with a 2-function wireless remote that controls the conveyor on/off and raises/lowers the conveyor.  4-function wireless remote is also available and adds control of conveyor swing and seed door open/close.

Models 410XL and 410 can be equipped with a 3-function wireless remote that controls the conveyor on/off, raises/lowers the conveyor, and opens/closes the unloading doors.

Models 410XL and 410 can also be equipped with a 6-function wireless remote that controls the conveyor on/off, raises/lowers the conveyor, opens/closes the unloading doors, starts/stops the engine, throttles the engine up/down, and swings the conveyor left/right.  This remote also includes a scale readout for convenient viewing if the seed tender is equipped with a scale package.

Turn your seed tender into a one-man operation with a wireless remote option that features large toggle switches for easy operation with gloves.  These remote packages include an override switch box that controls the seed tender in the case of a lost remote.

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The optional 2520 scale package has a four-point load cell system for ease of uniformly loading the planter with the desired amount of seed.  The scale features a built-in calculator that determines the weight needed per box and tracks fields for each unload event.

The standard auto-shutoff feature will stop the conveyor once a pre-determined weight of seed has been reached so you can put the exact amount of seed in each box.

T&G Applicator Inside

T&G Applicator

The hydraulically driven T&G Applicator option features a patented design that is synchronized with the conveyor speed for consistent application of talc or graphite, no matter how fast the conveyor is turning.

The 50 lb. hopper features a weather-tight lid and a convenient flow control valve that provides easy rate adjustment from .5 lbs. to 9.4 lbs. per minute depending on the material and composition.

Wheel Options

For a more stylized look, equip your Seed Pro model 410XL or 410 with aluminum wheels.

For added peace of mind during the busy planting season, choose the optional spare tire package located on the hitch for quick and easy access.

3-Stage Telescoping Downspout

Additional Accessories

A three-stage telescoping downspout option is available for 8” and 6” conveyors that reach up to 44’ on XL models and 40’ on non-XL models.

An LED tank and conveyor work light kit is available that provides added visibility when working in dark conditions.  Two LED lights are mounted on the tank and one is mounted on the conveyor for easier filling.

The hydraulically operated jack option is available for both gooseneck and bumper pull hitches, making hookup and disconnect quick and easy.  This is plumbed in directly with the Seed Runner’s hydraulic system.


Model 410XL - 4 Seed Boxes 410 - 4 Seed Boxes 210 - 2 Seed Boxes
Due to continuing improvements in the design and manufacture of Unverferth products, all specifications contained herein are subject to change without notice.
Overall Length (Conv. Forward) with Bumper Hitch 25'7" 22'11" 21'

with Gooseneck Hitch

23'6" 23'6" N/A
Overall Transport Width 8'6" 8'6" 8'6"
Overall Height to Top of Platform (without boxes) 5'10" 5'10" 5'6"
Overall Height to Top of Seed Boxes (with boxes) 11'1" 11'1" 10'9"
Platform Length 9'9" 9'9" 8'2"
Undercarriage Length 20'6" 18'6" 17'
Hitch to Back of Platform Length 20'9" 18'9" 17'
Undercarriage Deck Heith 1'10" 1'10" 1'10"
Underframe Clearance 1'2" 1'2" 1'2"
Conveyor Height in Transport Position 9'10" 9'3" 8'2"
Height to Top of Conveyor in Transport Position 11'11" 10'10" 10'2"
Conveyor Maximum Unload Height 14'2" 12'8" 12'4"
Conveyor Minimum Unload Height 9'10" 9'3" 8'2"
Conveyor Maximum Side Reach 16'10" 13'3" 13'
Conveyor Minimum Side Reach 14'7" 11'3" 11'
Approximate Empty Weight 5,900 lbs. 5,200 lbs. 3,800 lbs.
Loaded Tongue Weight 1,150 lbs. 1,000 lbs. 700 lbs.
Base Length (Less Undercarriage) 10'6" 10'6" 9'4"
Base Width (Less Undercarriage) 6'11" 6'11" 6'11"
Overall Height (Less Undercarriage) 10'3" 10'3" 9'5"
Reach with Standard 2-Stage Spout 30' (12-row planter) 30' (12-row planter) 30' (12-row planter)
Reach with Optional 3-Stage Spout 40' (16-Row planter) 40' (16-Row planter) 40' (16-Row planter)
Tongue Weight -Loaded (lbs.) 1,150 1,000 700
Hitch Type Std./Opt. 2-5/16" Ball 2-5/16" Ball 2-5/16" Ball
Lighting Connector 7-pin flat 7-pin flat 7-pin flat