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American Quality | Delivery Across the Lower 48 | U.S. Based Support
American Quality | Delivery Across the Lower 48 | U.S. Based Support

TNM336B Trencher | Baumalight

Brand BaumalightSKU TNM336B-S3604
Original price $5,463.00 - Original price $6,211.00
Original price
$5,463.00
$5,463.00 - $6,211.00
Current price $5,463.00
Authorized Dealer Sourcing
Financing Available for Eligible Orders
Contractor-Grade Equipment

Shipping: LTL freight. Commercial delivery preferred.

The Baumalight TNM336B is the 36 in mini trencher on a Bobcat mini skid steer plate, for 1,500 to 4,000 lb Bobcat mini skid steers, digging 36 in deep and 4 or 6 in wide by chain choice on a direct hydraulic drive. It is offered in four chain options, cup tooth or 50/50 rock and cup tooth, each in 4 in and 6 in widths.

Need fitment or freight help before you order? Contact our team.

Shipping & Freight

Delivery is available to the Lower 48 only; no shipping to Alaska, Hawaii or other US territories. Shipping is a flat rate based on your order total:

  • Orders up to $5,000: $279
  • Orders $5,000.01 to $10,000: $347
  • Orders $10,000.01 and over: $517

These rates cover standard freight delivery to a commercial address. After you place your order, our team will confirm your delivery timeline within 1 to 3 business days.

Liftgate service is required if your delivery location has no loading dock or forklift to unload the freight. If you are unsure whether you need it, contact us before ordering.

Commercial delivery locations are preferred when available. Residential delivery, limited-access locations, and appointment scheduling may affect handling and extend delivery time.

Lead times vary by product, manufacturer availability, and selected options. Some configured, special-order, or non-stock items require additional processing time before they ship.

Please inspect all freight shipments at delivery before signing. If you see visible damage, note it with the carrier and contact us as soon as possible.

If you need freight, delivery, or lead-time guidance before ordering, contact our team before you purchase.

Compatibility / Fitment

Compatibility varies by product type, machine setup, selected options, and intended application.

For machine-mounted equipment and attachments, buyers should confirm fitment before ordering using the relevant machine information, including model, attachment style, mount type, coupler type, hydraulic requirements, and any other product-specific requirements listed on the page.

Hardscape Heavy can assist with pre-order fitment guidance based on the information you provide. This guidance is limited to purchase and compatibility review before ordering and does not include field installation, hydraulic modification, fabrication, or on-site setup support.

If you are unsure whether a product will work with your machine or application, contact us before placing the order.

Specifications

Core Specs

  • Trench depth: 36 in
  • Trench width: 4 to 6 in, by chain option
  • Drive type: Direct drive
  • Main shaft: 1:10 taper hardened shaft
  • Chain torque at 3,000 PSI: 6,703 lbs-in
  • Over torque protection: Hydraulic relief
  • Unit weight, comparison chart: 535 lb

Fitment / Machine Requirements

  • Mount: Bobcat mini skid steer plate
  • Carrier horsepower: 10 to 25 HP
  • Carrier weight: 1,500 to 4,000 lb
  • Hydraulic flow, skid steer: 7 to 18 GPM


Need full technical detail?
See the Technical Details tab. If available, also see manufacturer PDF in the Downloads tab.

Returns & Warranty

Warranty coverage is provided by the product manufacturer where applicable. Warranty terms, coverage periods, exclusions, and claim procedures vary by brand and product type.

Hardscape Heavy does not create separate warranty coverage beyond the manufacturer’s warranty unless explicitly stated on the product page.

Returns are governed by our store return policy. Because many products in this category involve freight shipping, special ordering, or configuration-specific selections, return eligibility may vary by product and condition. Special-order, custom-configured, used, damaged, or installed items may not be eligible for return.

Please review our full return policy before purchase. If you have questions about return eligibility or manufacturer warranty coverage for a specific item, contact us before ordering.

The Baumalight TNM336B is the Bobcat mini skid steer version of the 36 in mini trencher, built on the same frame and chain as the TN236 with a Bobcat mini skid steer plate in place of the standard mini mount. It is for contractors and trade professionals who run a Bobcat mini track loader and need to bury water, gas, power and communications lines in the tight spaces that carrier is bought for.

The hydraulic motor is mounted in line with the drive sprocket and turns the digging chain directly, so there is no roller chain between the two to stretch or jump. Spoil is carried out to the side of the trench and kept close for backfilling, the hinged crumb scraper bar sweeps loose material back into the chain at any depth, and chain tension is taken up with a few pumps of a grease gun through an internal cylinder. This is built for the Bobcat mini crews that would rather pin on a plate that fits than carry an adapter for one that does not.

Common Applications

  • Trenching for water, gas, power and communications lines
  • Burying cable and utility lines in tight spaces from a Bobcat mini skid steer
  • Landscape and residential service line trenching

Selection Notes

  • Four chain options are offered, cup tooth or 50/50 rock and cup tooth, each in 4 in and 6 in widths. The rock and cup chain carries carbide rock teeth on half its holders for rocky ground, and the supplier offers a bullet style tooth for rocky soil on request.
  • The carrier band is 1,500 to 4,000 lb Bobcat mini skid steers at 10 to 25 HP and 7 to 18 GPM.
  • The Bobcat mini skid steer plate is the standard mount and is named in every part number's description. The TN236 is the same trencher on the standard mini skid steer mount.
  • The freight weight on each row is the highest of the weights for that row.
Cutting Capacity
Trench depth
36 in (914 mm)
Trench width
4 to 6 in, by chain option
Chain widths offered
4 and 6 in
Teeth on the included chain
Hardened, reinforced cup style
Rock chain option
50/50 rock and cup tooth chain
Bullet tooth option
For rocky soil, on request
Driveline
Drive type
Direct drive
Motor mounting
In line with the main sprocket
Roller chain
None, power goes straight to the sprocket
Main shaft
1:10 taper hardened shaft
Chain torque at 3,000 PSI
6,703 lbs-in
Over torque protection
Hydraulic relief
Hydraulics
Flow range, skid steer
7 to 18 GPM
Flow range, tractor
Not applicable
Chain torque rating pressure
3,000 PSI
Mount & Interface
Standard mount
Bobcat mini skid steer plate
Mount
Bobcat mini skidsteer plate
Machine Notes
Series
300 series
Carrier horsepower
10 to 25 HP
Carrier weight
1,500 to 4,000 lb
Carrier class
Bobcat mini skid steers
Build
Side auger
Standard, carries spoil clear of the chain
Crumb scraper bar
Standard, hinged, heavy construction
Nose
Solid steel, precision machined
Nose bearings
Dual tapered roller bearings
Bearing protection
Machined washer, rubber seal, grease fitting
Chain tensioner
Grease cylinder, adjusted with a grease gun
Accessories
Replacement chains
S3604, S3606, M3604, M3606
Dimensions & Weights
Unit weight
535 lb (243 kg)
Freight weight, TNM336B-S3604
697 lb (316 kg)
Freight weight, TNM336B-S3606
620 lb (281 kg)
Freight weight, TNM336B-M3604
640 lb (290 kg)
Freight weight, TNM336B-M3606
640 lb (290 kg)
Freight dimensions, per part
39 x 30 x 78 in; others per the ordering record
Cutting Capacity: Teeth configuration, number of teeth on chains, model TN236, TNS336 and TNM336B
Chain optionCup teeth, left sideCup teeth, right sideCup teeth, totalRock tooth holders, leftRock tooth holders, rightRock tooth holders, total
S3604 chain18 teeth18 teeth36 teeth0 holders0 holders0 holders
S3606 chain18 teeth18 teeth36 teeth0 holders0 holders0 holders
M3604 chain9 teeth9 teeth18 teeth9 holders9 holders18 holders
M3606 chain9 teeth9 teeth18 teeth9 holders9 holders18 holders
Driveline: Trencher range, all seven models
RowTN236TNM336BTNS336TNS536TN548TN560TN760
MountStandard Mini skidsteerBobcat mini skidsteerUniversal skidsteerUniversal skidsteerUniversal skidsteerUniversal skidsteerUniversal skidsteer
Trench depth36 in36 in36 in36 in48 in60 in60 in
Trench width4 in to 6 in4 in to 6 in4 in to 6 in6 in to 10 in6 in to 10 in6 in to 10 in6 in to 10 in
Drive typeDirect driveDirect drivePlanetaryPlanetaryPlanetaryPlanetaryPlanetary
Main shaft size1:10 taper hardened shaft1:10 taper hardened shaft1:10 taper hardened shaft2-9/16 in solid hardened steel2-9/16 in solid hardened steel2-9/16 in solid hardened steel2-9/16 in solid hardened steel
Trencher chain torque at 3,000 PSI6,703 lbs-in6,703 lbs-in14,571 lbs-in21,856 lbs-in21,856 lbs-in21,856 lbs-in33,877 lbs-in
Over torque protectionHydraulic reliefHydraulic reliefHydraulic reliefHydraulic reliefHydraulic reliefHydraulic reliefHydraulic relief
Horse Power (HP)10 to 25 HP10 to 25 HP30 to 55 HP40 to 100 HP40 to 100 HP40 to 100 HP40 to 100 HP
Carrier weight (lb)1,500 to 4,000 lb1,500 to 4,000 lb2,000 to 5,000 lb3,000 to 7,000 lb3,000 to 7,000 lb3,000 to 7,000 lb4,000 to 12,000 lb
Min. / Max. GPM Skidsteer7 to 18 GPM7 to 18 GPM10 to 20 GPM12 to 25 GPM15 to 25 GPM12 to 25 GPM20 to 42 GPM
Min. / Max. GPM TractorNot applicableNot applicable14 to 22 GPM15 to 25 GPM15 to 25 GPMNot applicableNot applicable
Weight569 lb535 lb850 lb1,200 lb1,250 lb1,500 lb1,800 lb
Dimensions & Weights: Chain options
Chain optionDescriptionWeight (lb)
S3604 chain36 in x 4 in Standard cup tooth chain810 lb
S3606 chain36 in x 6 in Standard cup tooth chain820 lb
M3604 chain36 in x 4 in 50/50 rock & cup tooth chain830 lb
M3606 chain36 in x 6 in 50/50 rock & cup tooth chain840 lb
Direct drive with no roller chain
Power reaches the digging chain sprocket without a chain to stretch or jump
Side auger
Spoil stays clear of the chain but close to the trench for backfilling
Hinged crumb scraper bar
Loose material is swept back into the chain at any trench depth
Grease cylinder chain tensioner
Chain tension is taken up with a few pumps of a grease gun

Included with Purchase

  • 1 TNM336B trencher with the chain option selected
  • Digging chain with hardened, reinforced cup style teeth, or 50/50 rock and cup teeth on the rock chain options
  • Side auger
  • Crumb scraper bar, standard equipment
  • Bobcat mini skid steer plate, named in every part number's description

Not Included Unless Stated

  • Carrier
  • D006290 Bobcat cheater adapter plate, which the supplier prices separately
  • On-site installation or machine configuration

Note: Confirm exact included components and mount hardware with supplier at time of order.

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