Parcel ground shipping
Items weighing 149 lb or less ship by ground parcel rather than freight.
Receive by Sep 28
Remanufactured
Hammer Strength Select Back Extension
$1,995.00
Save 62%
New retail $5,299 —
you save $3,304 buying remanufactured
In Stock
Parts & Labor, Fully Rebuilt
Remanufactured to full mechanical spec, covered from the day it lands.
Shipping calculator
Enter your state and ZIP code to see delivery options and prices.
Machine overview
Condition: Remanufactured
Warranty: 1 Year Parts & Labor (Extended Available)
Returns: 30-Day Returns & Exchanges
Shipping: Driveway Delivery, or Inside Delivery & Assembly
Receive by: Sep 28
How It Ships: Fully Assembled
Delivery options
How delivery works
Your item’s shipping method and price are confirmed in the shipping calculator and at checkout. Here is what each delivery path means.
Driveway freight delivery
Your equipment is palletized and protected. The freight carrier schedules delivery, then uses a liftgate to lower it to your curb or driveway. Moving it inside and unpacking it are up to you.
Inside delivery & assembly
When selected and available for your address, the delivery team brings the equipment into the room, assembles and tests it, then removes the packaging.
Full truckload
For commercial builds and multi-pallet orders, a dedicated trailer keeps the full order together in one delivery. We confirm the unloading plan before the truck ships.
Size: 46" × 40" × 55" tall
Financing: From $174.37/mo or 0% APR with
Check your purchasing powerWhat Remanufactured Means
Every remanufactured machine is fully disassembled, deep cleaned, repaired or re-parted to factory spec, then tested under load before it ships. Backed by one year parts and labor, with extended coverage available.
Warranty Coverage
New and remanufactured equipment are both covered for one year, parts and labor, backed by us. Extended protection is available on either through BAG Care+. Used equipment is sold as-is with no warranty coverage, and is described honestly before you buy. We service nationwide - every ZIP code in the country - so coverage travels with the machine.
30-Day Returns & Exchanges
Change your mind within 30 days of delivery and you can return the machine or exchange it for a different size, color or configuration.
Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns and exchanges. Freight items must go back packaged to the same standard they arrived in — we will tell you exactly what that means before anything is collected.
Anything that arrives damaged or fails under warranty is handled separately and carries no restocking fee. Full terms are in our Returns, Exchange & Refund Policy.
Add before it ships
Before the freight bookingCoverage and accessories have to go on the same booking as the machine. Add them here and they travel together.
Extended warrantyRecommendedEvery machine includes 1 year parts and labor.
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Product details
Commercial-grade equipment, inspected and supported by warranty.
The Hammer Strength Select Back Extension strengthens the posterior chain with a five-position adjustable start, ergonomically shaped lumbar pad aligned to the axis of rotation, two non-slip foot platforms, and a 295 lb selectorized stack — the lumbar pad's alignment to the rotation axis is the critical fit specification: it positions the user so the lower back extends through the correct arc rather than pivoting from the wrong point, which is what causes lumbar stress on improperly set back extension machines. The five-position start accommodates different torso lengths and range-of-motion preferences, and the two foot platform positions further expand the fit range across users of different leg lengths.
Smooth selectorized resistance covers rehabilitation through advanced lower back loading. 295 lb stack on a 560 lb commercial frame, 46" × 40" footprint, 300 lb max user. Remanufactured.
Primary muscles targeted
Erector Spinae Gluteus Maximus Hamstrings
Secondary muscles
Multifidus Adductors Core Stabilizers
Key features
Lumbar Pad Aligned to Rotation Axis — Correct Extension Arc
The ergonomically shaped lumbar pad is positioned in relation to the machine's rotation axis — ensuring the lower back extends through the correct arc rather than pivoting from the wrong point. Incorrect axis alignment on back extension machines is the primary cause of lumbar stress during the exercise, making this the most important fit variable on the machine.
5-Position Start · 2 Foot Platforms · 295 lb Stack
Five start positions accommodate different torso lengths and range-of-motion preferences. Two non-slip foot platforms expand the fit range across users of different leg lengths. 295 lb selectorized stack covers posterior chain training from rehabilitation through advanced progressive loading.
Specifications
Dimensions (L × W × H)
46" × 40" × 55"
Machine Weight
560 lb
Weight Stack
295 lb
Selectorized · 5-position start · 300 lb max user
Design
Axis-Aligned Pad · 5-Position · 295 lb · 560 lb
Lumbar pad aligned to rotation axis · 5-position start · 2 non-slip foot platforms · 295 lb selectorized · 300 lb max user · 560 lb commercial frame
1. How do I select weight on a selectorized machine?
Insert the weight pin into the desired stack hole; ensure it clicks into place before use.
2. What weight stack size should I choose?
Most base level weight stacks can accommodate even advanced lifters, but for the real weight-movers, look for the items with expansion stacks.
3. What maintenance is required?
Inspect guide rods and stack alignment monthly; wipe rods and replace worn bushings annually.
4. Is installation available?
Yes—schedule professional installation during checkout for a seamless setup.
5. What warranty covers these machines?
New units carry full OEM coverage; remanufactured units include a 12 month Build A Gym Guarantee.
30-Day Returns & Exchanges
Buy with confidence. Every Build A Gym order includes a 30-day window to return or exchange, whether you want a different size, color or configuration. Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns; warranty and damage claims carry no restocking fee. Full details in our Returns, Exchange & Refund Policy.
The Hammer Strength Select Back Extension strengthens the posterior chain with a five-position adjustable start, ergonomically shaped lumbar pad aligned to the axis of rotation, two non-slip foot platforms, and a 295 lb selectorized stack — the lumbar pad's alignment to the rotation axis is the critical fit specification: it positions the user so the lower back extends through the correct arc rather than pivoting from the wrong point, which is what causes lumbar stress on improperly set back extension machines. The five-position start accommodates different torso lengths and range-of-motion preferences, and the two foot platform positions further expand the fit range across users of different leg lengths.
Smooth selectorized resistance covers rehabilitation through advanced lower back loading. 295 lb stack on a 560 lb commercial frame, 46" × 40" footprint, 300 lb max user. Remanufactured.
Primary muscles targeted
Erector Spinae Gluteus Maximus Hamstrings
Secondary muscles
Multifidus Adductors Core Stabilizers
Key features
Lumbar Pad Aligned to Rotation Axis — Correct Extension Arc
The ergonomically shaped lumbar pad is positioned in relation to the machine's rotation axis — ensuring the lower back extends through the correct arc rather than pivoting from the wrong point. Incorrect axis alignment on back extension machines is the primary cause of lumbar stress during the exercise, making this the most important fit variable on the machine.
5-Position Start · 2 Foot Platforms · 295 lb Stack
Five start positions accommodate different torso lengths and range-of-motion preferences. Two non-slip foot platforms expand the fit range across users of different leg lengths. 295 lb selectorized stack covers posterior chain training from rehabilitation through advanced progressive loading.
Specifications
Dimensions (L × W × H)
46" × 40" × 55"
Machine Weight
560 lb
Weight Stack
295 lb
Selectorized · 5-position start · 300 lb max user
Design
Axis-Aligned Pad · 5-Position · 295 lb · 560 lb
Lumbar pad aligned to rotation axis · 5-position start · 2 non-slip foot platforms · 295 lb selectorized · 300 lb max user · 560 lb commercial frame
1. How do I select weight on a selectorized machine?
Insert the weight pin into the desired stack hole; ensure it clicks into place before use.
2. What weight stack size should I choose?
Most base level weight stacks can accommodate even advanced lifters, but for the real weight-movers, look for the items with expansion stacks.
3. What maintenance is required?
Inspect guide rods and stack alignment monthly; wipe rods and replace worn bushings annually.
4. Is installation available?
Yes—schedule professional installation during checkout for a seamless setup.
5. What warranty covers these machines?
New units carry full OEM coverage; remanufactured units include a 12 month Build A Gym Guarantee.
30-Day Returns & Exchanges
Buy with confidence. Every Build A Gym order includes a 30-day window to return or exchange, whether you want a different size, color or configuration. Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns; warranty and damage claims carry no restocking fee. Full details in our Returns, Exchange & Refund Policy.
Save 5%
Complete the room
The machines our install crew puts in the same room as this one - priced as one shipment, delivered in one booking.
$1,995.00
This machine
Bundle total
- Items
- $4,247.28
- Bundle price
- $4,034.92
- Estimated bundle saving
- −$212.36
- Ships complete in
- 6–8 weeks
One freight booking, one delivery window, one crew. Inside Delivery & Assembly available on the whole bundle.